VPN Protocol and Route Technology Reference

Separate protocol, route and application needs first

How this page differs from the quick-start guide

If you need to create an account, get a subscription, import it into a client and verify the connection, start with the quick-start guide. It follows the setup sequence and is designed for first-time users. This page is not another installation manual. It is a technical reference for situations where several protocols are available, a region offers both direct and relay routes, a mobile device uses unusual amounts of power while idle, or the connection becomes intermittent at peak hours. The distinction is simple: the guide answers “where do I click next?”, while this page explains “why choose this option, and what changes if I choose another?”

Protocols and routes are often combined in a single node name, which can make them seem like the same layer. In reality, the protocol defines how the client establishes a session, encapsulates data and keeps the connection alive. The route determines which networks and carriers data crosses between the access point and the exit. Application needs determine which metric matters most. Text chat values consistent availability and quick recovery; Streaming cares more about steady throughput over time; real-time voice is more sensitive to jitter and burst loss; background sync can often tolerate a longer individual wait. A protocol name alone cannot predict the full experience.

Use layered thinking to avoid misdiagnosis

When troubleshooting a connection, break the path into the client, protocol, access network, transport route, exit network and destination service. The client handles system proxy settings, routing rules and network changes; the protocol handles session setup and data transport; the access network is the wired, Wi-Fi or mobile connection in use; the transport route links the entry and exit points; the exit network determines the region from which the destination service is reached. A change at any layer can alter the result. So “it got faster after changing protocols” does not necessarily prove that the new protocol has higher throughput. The switch may also have selected another route, or reset packet loss affecting the old session.

Likewise, “closer” does not always mean more stable. Geographic distance is only part of the propagation path, and real routing may pass through different exchange points. A relay or dedicated route with fewer detours and stronger interconnection can be better for sustained transfers than a geographically closer direct route with unstable cross-network quality. When choosing a route, fix the target region first, then compare route types. When comparing protocols, keep the same entry, exit and roughly the same time window whenever possible. This reduces variables and makes the result repeatable.

Separate service facts from technical conclusions

VPNZL offers 120+ countries / 190+ routes, supports Windows / macOS / iOS / Android / Linux, and allows unlimited devices to be online at the same time. These are service facts that can narrow your choices, not a guarantee that every device, local network and destination service will behave identically. Protocol and route selection still depends on device status, access carrier, target region and application type. No email address is required to create an account; a username and password are enough. After signing in, get your subscription and let the client load the available routes.

For the full list of regions and route types, visit the servers page. To compare monthly subscriptions and traffic packages, visit the plans page. Technical choices and plan choices should also remain separate: a protocol does not change a plan’s traffic rules, and plan capacity does not change a route’s quality. Identify your use case and acceptable maintenance cost first, then choose the protocol and route type you can use long term. That is more reliable than chasing the latest name.

Trade-offs in common protocols

Shadowsocks: simple design, broad compatibility

Shadowsocks is built around a relatively direct data path, mature client implementations and broad support for subscriptions, traffic rules and system proxying across desktop and mobile platforms. It suits users who want clear configuration, controlled resource use and dependable everyday browsing and app access. Simple does not mean fastest in every situation. It means less protocol-specific processing, making it easier to determine whether a problem comes from the client, route or destination service. On older devices, computers running many background tasks and mobile devices that stay connected for long periods, a mature implementation often matters more than a long feature list.

Its limits are equally clear. When the access network has substantial packet loss or transport needs more aggressive recovery, simple encapsulation cannot fix the underlying link. Repeatedly switching between similar encryption methods is usually of limited value; inspect the route or choose a transport design better suited to an unstable network. Shadowsocks works well as a baseline: establish the route’s normal performance with it, then compare other protocols.

VMess and VLESS: separate the identity and transport layers

VMess combines authentication, sessions and data transport in one design. Its client ecosystem is mature, making it suitable for environments with established configurations and known transport combinations. Its processing chain is more complex than that of a minimal protocol, so the experience depends not just on the name “VMess”, but also on the underlying transport, client stability and route compatibility. Two nodes with the same protocol name may still behave differently.

VLESS focuses on reducing the work handled by the protocol itself, leaving encryption and transport security to outer mechanisms. Its strengths are flexible combinations and light additional encapsulation, but that flexibility also creates more configuration differences. If a client has incomplete support for the outer transport, or its parameters do not match the server, a connection may be established without normal data transfer. Treat the protocol, transport and route as one system when choosing VLESS; do not copy just one label.

Trojan: data over mature secure transport

Trojan generally relies on a mature secure transport session, so its connection behavior resembles common encrypted communications. It suits stable long-lived connections when client support is good and the route itself is consistent. Its advantage is not mysterious “automatic acceleration”, but the reduced need for custom handling through mature session management. The trade-off is an outer handshake during connection setup. Certificate problems, incorrect system time, DNS issues or client network permissions can all block the connection before data begins to flow.

On desktop, handshake overhead is usually spread across a long session. On mobile devices that frequently change networks, repeated reconnection deserves more attention. If a device continually switches between Wi-Fi and mobile networks, reliable session retention and fast recovery matter more than the theoretical cost of a single connection.

Hysteria2 and TUIC: active transport for unstable links

Hysteria2 and TUIC are often used where packet loss, jitter and bandwidth changes are significant. They tend to use more active congestion control and multi-stream data transport, reducing the chance that one stalled flow will hold up the others. For pages with many concurrent requests, video that needs continuous buffering, or mobile networks with changing quality, this design may restore useful throughput faster than a traditional reliable byte stream.

The trade-off is that client implementation, the system network stack and local device state have a greater effect on results. Aggressive sending cannot overcome limited route capacity; when the entry is congested or exit interconnection is insufficient, a protocol can improve recovery but cannot create bandwidth. These protocols may also increase short bursts of computation and wake-ups, so older devices, low-power modes and systems with strict background limits should be evaluated for heat, battery use and reconnection behavior.

Use the protocol table to establish a direction, not a permanent ranking. The safest approach is to observe the first page load, sustained playback, background recovery and post-switch behavior on the same region, route type and device. Any protocol conclusion detached from the route and client implementation can turn a local result into a false general rule.

Connection setup, resource use and concurrency

Connection setup is more than a handshake

After you click Connect, the client may parse the subscription, read node details, resolve DNS, establish the underlying network connection, authenticate, create a secure session, take over system proxying and load traffic rules. The “Connected” status only means the client considers the tunnel available; it does not prove that every destination app is using the correct path. Some apps keep old connections, and some browsers continue reusing existing sessions. A brief overlap of old and new exits right after switching routes is not necessarily a protocol failure.

Connection setup speed is affected by cached state. The first use of a node requires more DNS and session preparation; a later reconnect may reuse part of the result. After a network interface changes, that cache may become invalid again. When comparing protocols, observe both the first connection and recovery after disconnecting instead of timing one button press. If the status changes to Connected quickly but pages continue waiting, the issue is more likely DNS, traffic rules or the exit path than the handshake itself.

CPU, memory and system calls

Protocol resource use comes from encryption, data copying, buffer management, logging and the client interface. A lighter protocol may reduce custom encapsulation, while the actual client can still use more resources because of large rule sets, verbose logging or many simultaneous connections. Conversely, a more complex protocol with a mature implementation and sensible buffering may run smoothly on modern devices. Do not infer device temperature or fan activity from protocol complexity alone.

When desktop usage stays high, first disable verbose logging and pause large sync jobs, then check whether an app is repeatedly retrying failed requests. If usage drops immediately after stopping a high-concurrency app, actual traffic processing is likely the main cost. If usage remains high while idle, inspect rule updates, subscription refreshes, DNS loops and repeated network-interface changes. On mobile, also consider whether the system is frequently waking the app; foreground CPU usage alone cannot explain battery drain.

Multiplexing is not always better at higher levels

Multiplexing puts multiple app requests into fewer underlying connections, reducing repeated handshakes and potentially improving startup on pages with many small requests. But if one underlying connection stalls, several requests carried by it may be affected together. Whether to enable it, and at what concurrency, should depend on the client defaults and the actual app. Do not raise aggregation simply to chase a lower connection count.

For interactive apps, timely responses from a small number of requests matter more than the number of underlying connections. For sustained downloads, steadily filling the available path matters more than repeatedly opening connections. For real-time voice, large buffers add waiting even when measured throughput is higher. To assess multiplexing, open a page, play media for a while and perform light interaction at the same time. If one task clearly pauses after another starts, there may be queue competition or single-connection blocking. Try another protocol, disable extra multiplexing or choose a more stable route.

Traffic rules change what you observe

Clients usually handle direct requests, tunneled requests and requests that need local DNS at the same time. If a rule sends an app directly, changing the protocol will not change its network path. If a browser and a standalone app use different proxy methods, they may also behave differently. During troubleshooting, confirm whether the client is in rule-based or global mode, and check which rule the destination domain ultimately matched. Do not blame the protocol for an app failure before confirming the routing result.

A system proxy only covers apps that follow system settings. A virtual network interface can take over more traffic, but it is also more likely to conflict with security software, enterprise networking tools or other network extensions. On Windows and macOS, check whether multiple network-control tools are running. On iOS and Android, verify that only one network extension is enabled. On Linux, differences often come from desktop proxy settings, environment variables and app-specific proxy settings being out of sync.

Mobile battery life, idle time and network changes

Battery drain comes from continuous wake-ups, not just encryption

Battery use on mobile devices cannot be reduced to protocol encryption strength. More common sources include an active wireless radio, frequent client keep-alives, repeated retransmission under weak signal, constant app wake-ups and several background processes transferring data at once. A protocol may require less work per operation yet use more power overall if it repeatedly reconnects on an unstable network. Consider screen use, signal strength, background sync and network changes together.

If a phone works normally on good Wi-Fi but becomes noticeably warm after leaving Wi-Fi coverage, the issue may involve mobile signal quality, interface changes or session recovery. First check whether it still heats up without a large download running, then compare Shadowsocks, Trojan, Hysteria2 or TUIC on the same route. If the difference appears only on unstable access networks, focus on recovery behavior. If every protocol is affected, inspect the client, system network extension and background apps.

iOS background behavior and on-demand connections

iOS manages tunnels through a system network extension. After the client moves to the background, the permitted extension is what actually forwards data. If on-demand rules are too broad, network changes, DNS requests or app wake-ups may trigger frequent tunnel setup attempts. Symptoms include a repeatedly changing status bar, battery loss while idle or brief inaccessibility when returning to the foreground. The answer is not simply shorter keep-alives. Check the on-demand rules, remove duplicate network configurations and confirm that an old client configuration is not still active.

For long idle periods, prefer a protocol and route that can maintain a stable session on the current network rather than the most aggressive sending strategy. For sustained media or heavy sync, switch to a more active recovery protocol only after considering packet loss. Low Power Mode may restrict background activity and change recovery speed; this is the combined result of system scheduling and protocol behavior.

Android background limits and battery policies

Android devices vary more widely. Some systems restrict a client in the background after the screen turns off, pausing the tunnel; when the screen turns on again, the client must restore the network interface and session. Other systems allow continuous operation but batch background network activity, leaving the connection indicator visible while messages arrive late. Check the client’s battery settings and make sure it is not restricted. Also avoid running multiple apps that can take over network traffic at the same time.

Setting the client to unrestricted does not mean battery use should be ignored. Start with the system default policy, and relax background limits only after confirming that the connection is interrupted when the screen is off. Then observe idle behavior, network changes and everyday use. If only one app is delayed while the browser and other messaging apps work normally, inspect that app’s background permissions and traffic rules before replacing the entire protocol.

Switching between Wi-Fi and mobile networks

When a device moves from Wi-Fi to a mobile network, its local address, exit interface and available paths all change. Sessions based on traditional connections usually need to be rebuilt. Implementations that support connection migration or faster recovery may reduce the perceived interruption, but this still depends on complete client and server support. For a switch test, stop large file transfers first, use an ordinary page or continuous audio to observe recovery, then add video and downloads. This helps distinguish “the session did not recover” from “the recovered session lacks throughput”.

If every network switch requires a manual disconnect and reconnect, update the subscription and choose the node again first to make sure an expired session is not being reused. Then check for other virtual network configurations on the system. If the same protocol differs significantly between routes, path factors matter more. If every route requires manual recovery, the client or system network extension is more likely at fault.

The goal of mobile selection is not to find an abstract “lowest-power protocol”, but to reduce unnecessary reconnects, retransmissions and background wake-ups on the actual network. A combination that maintains a stable connection, recovers reliably after interface changes and works with the system’s battery policy is usually better for long-term use than one that starts faster in a single test.

How direct, relay and dedicated routes differ

Direct routes: simple paths, dependent on public interconnection

A direct route means the user’s access network reaches the service entry or exit through public routing, without an additional optimized relay. Its advantage is a simpler path with fewer layers, which can respond directly when interconnection is good. The relationships are also easier to understand. The limitation is that public interconnection quality can vary by carrier, region and time. A nearby destination does not guarantee a short route, and the same destination region does not mean the entry paths are identical.

Direct routes are useful as a baseline. Choose a region with strong interconnection to your local network, then observe page startup, sustained playback and peak-hour behavior. If the route is stable during the day but fluctuates at night, and protocol changes make little difference, public interconnection or entry congestion is more likely than a client setting issue. When reviewing VPNZL’s regions and route categories, filter by region on the servers page, then compare different topologies to the same destination.

Relay routes: improve cross-network paths with a controlled entry

A relay route adds an access or forwarding layer between the user and the final exit. This does not simply add distance; it replaces the least stable section of the public path with a more controlled entry, then forwards traffic from there to the exit. Its effectiveness depends on interconnection from the user to the entry, transport capacity from entry to exit and congestion at the forwarding layer. When designed well, it can reduce cross-carrier detours and make peak-hour performance more consistent. When designed poorly, the extra hop can create another queue.

When choosing a relay route, the entry location is often more important to inspect first than the exit name. The exit determines the region seen by the destination service; the entry determines which network the local connection reaches first. If the client list does not show entry details, compare stability across several routes in the same region. A relay is not inherently better than a direct route. It is most useful when direct cross-network performance fluctuates but the local path to a particular entry is stable.

IEPL dedicated routes: focus on the controlled transport segment

An IEPL dedicated route provides a more controlled transport segment between entry and exit, reducing the effect of public routing changes on that section. Its main value is stability and path predictability, not unlimited throughput for every app. The user-to-entry path and the exit-to-destination path may still use ordinary networks, so local Wi-Fi quality, entry congestion, exit interconnection and destination service conditions continue to affect the result.

Dedicated routes suit sustained office work, cross-region collaboration, long media sessions and tasks sensitive to peak-hour fluctuations. If the problem occurs before the user reaches the entry, such as local packet loss or a weak wireless signal, a dedicated route cannot skip that section. If the destination service is slow, it can only control the relevant part of the transport path. Understanding these boundaries prevents route type from becoming a one-size-fits-all answer.

Consider both exit region and entry quality

Users often choose an exit based directly on the destination service’s region, which is a reasonable starting point, but local quality to the entry also matters. For a service in Japan, a Japan exit may shorten the exit-to-service path. If the local connection to that entry is unstable, a relay route through a Singapore or Hong Kong entry toward the same exit may be steadier. For AI Tools and Streaming, the exit region also affects content and service availability, so latency alone is not enough.

A region in a route name usually indicates the exit or primary service region; use the route page’s type description for the exact structure. Keep the destination service, device and access network consistent during comparisons, rather than changing routes and Wi-Fi at the same time. Finding a stable entry first, then choosing an acceptable exit region, is often more effective than sorting only by map distance.

Packet loss, jitter and peak-hour congestion

Where packet loss occurs

Packet loss means a packet did not arrive within the expected time, but that can happen on the local Wi-Fi network, access carrier, cross-network interconnection, relay entry, exit network or before the destination service. Wireless interference causes retransmissions, an overloaded home-router queue can drop packets, carrier interconnection congestion can make paths wait, and destination rate limits can look like request timeouts. One app stalling is not enough to locate the loss.

Narrow the scope first. If the same device works normally over wired networking, the wireless access path is more likely. If several devices fail at the same time, check the router and upstream network. If several exits are affected under one entry, investigate the entry path first. If only one destination service is affected while other pages and media work, inspect the exit-to-service interconnection or the service itself. This branching approach is more effective than repeatedly reinstalling the client.

Jitter affects real-time apps more than average latency

Jitter means that packet arrival intervals are unstable. Even when average response looks acceptable, occasional long waits can cause broken-up voice, a frozen remote desktop or delayed game input. Media playback usually has a buffer that absorbs some variation; real-time interaction has less buffering and is therefore more sensitive. A protocol with active recovery and independent data streams may reduce the effect of some losses on other requests, but it cannot remove variation caused by the physical path and queues.

When testing a real-time app, do not run a large upload at the same time. Once the home network’s upstream queue fills, acknowledgements and interaction requests also wait, making the remote route appear slower. Pause cloud drives, photo sync and file uploads before comparing. If performance improves clearly, investigate router queue management and background tasks instead of simply changing the exit country.

Peak-hour performance reflects both capacity and path

Peak-hour fluctuations usually come from rising demand on shared links. Congestion may be in the home access connection, metropolitan network, carrier interconnection or service entry. Even users choosing routes with the same name may see different results because their carriers and regions differ. Evaluate whether a route suits you during the times you actually use it, rather than relying on one test during a quiet period.

If only the direct route fluctuates at night while a relay or dedicated route remains steady, the optimized entry or controlled transport segment may be avoiding the congested point. If every topology worsens at once, check local access and the client device. If page interaction is normal but sustained video buffers, available throughput may have fallen. If every new request starts slowly, DNS or connection setup may also be involved. Separating “slow to start” from “slow during sustained transfer” makes the next choice more precise.

Reliable transport versus datagram-based recovery

A traditional reliable byte stream guarantees in-order delivery. When a segment is lost, later data may wait for the missing portion to recover. This is suitable for complete, ordered transfers, but when loss is significant, multiple requests sharing one connection can affect one another. Protocols that use datagrams and handle reliability at a higher layer can keep streams more independent and use acknowledgements and recovery better suited to unstable links.

This difference helps explain why Hysteria2 or TUIC can recover faster on some mobile networks, and why they do not always offer a clear advantage on stable wired networks. When the underlying route is already stable, the benefit of additional scheduling shrinks. When exit capacity is insufficient, active recovery may even increase queuing. Choose based on the current bottleneck rather than treating a transport mechanism as a fixed tier.

Do not let a single speed test mislead you

A single download can show available throughput at that moment, but it does not fully cover first-byte wait, jitter, recovery after network changes or long-term stability. The speed-test target may also use a different path from your everyday destinations. A more useful method is to observe real tasks: open common pages, play familiar media, sync documents, keep a voice or remote session active, and record which problem appears first.

Change only one variable at a time while troubleshooting. Fix the protocol and change the route, then fix the route and change the protocol. Make sure the device is not updating or syncing at the same time. After comparing, restore the original settings and see whether the result can be reproduced. Only repeatable differences deserve to guide long-term choices. For privacy checks such as no-log claims and minimal account data, continue with How to verify a privacy-focused VPN.

Choose protocols and routes by use case

AI Tools: prioritize persistent sessions and a consistent exit

AI conversations combine page-resource loading, continuous text responses, file uploads and longer sessions. In most cases, maintaining a stable connection matters more than a brief peak. Choose an exit region where the destination service is available and interconnection is stable, then compare protocols on the same route. For everyday text chat, start with mature combinations such as Shadowsocks, VLESS or Trojan. If the access network is unstable and long responses often break, try Hysteria2 or TUIC and see whether recovery improves.

If file uploads fail while text chat works, check upload size, the browser session and upstream networking instead of declaring the whole route unusable. If the page opens but the login state keeps changing, make sure traffic rules do not send related domains for the same service through different exits. For more AI Tools guidance, see the AI acceleration page.

Streaming: steady throughput and exit region matter more

Streaming first loads the page and authorization details, then continuously fetches media segments. Fast startup does not guarantee stable long playback, and a high single-test speed does not prove that the destination platform uses the same path. First confirm that the exit region fits the content requirements, then see whether the buffer can stay ahead. If a direct route is stable, there is no need to add another path. If sustained buffering appears at peak hours, compare relay and IEPL dedicated routes.

For the protocol, prioritize mature, compatible combinations on stable networks. When Wi-Fi or mobile networks show significant loss, compare Hysteria2 and TUIC. Repeatedly dragging the timeline creates burst requests, so distinguish normal continuous playback from deliberate seeking during tests. See the Streaming access page for more region and device details.

Cross-border work: prioritize predictability and recovery

When remote documents, code repositories, workplace communication and video meetings run together, the connection must support both interaction and sustained transfer. Prefer a relay or dedicated route with a stable local entry, then choose a protocol with mature client support. Trojan, VLESS or Shadowsocks suit long sessions on stable networks. During commutes or on mobile hotspots, compare protocols that place more emphasis on packet-loss recovery. Do not change several settings just before a meeting; keep a tested backup route ready in advance.

Traffic rules are especially important. Corporate intranets, printers and local devices usually need to remain direct, while international collaboration tools can enter the tunnel according to rules. Global mode is convenient for quick checks but may change access to local services. After adjusting rules, test the browser, desktop client, code tools and meeting software separately to confirm that they are not using different proxy configurations.

Real-time voice and remote control: reduce queues and jitter

Real-time apps do not necessarily need the highest average throughput, but they are sensitive to sudden waits. Prefer a route with a short, stable path from your local network to the entry rather than focusing only on the exit region. Pause large uploads and background sync before testing so local queues do not distort the result. Choose a protocol based on whether small data streams return promptly and recover quickly after loss. If active transport heats the device or affects other tasks, return to a steadier combination.

If remote control has a clear picture but delayed input, buffering may favor throughput. If audio breaks up while file downloads work normally, jitter may be the issue rather than total bandwidth. Describe interaction, audio and video separately to distinguish protocol queues, route fluctuation and app settings.

Multi-device homes: share one subscription, not necessarily one protocol

VPNZL supports unlimited devices online at the same time, but different devices do not need identical protocols. TVs and desktop computers usually use stable Wi-Fi or wired connections and suit mature, low-maintenance combinations. Phones change networks more often, so session recovery and background limits matter more. Older devices should prioritize compatibility and resource use. Manage the subscription centrally, but choose protocols and routes per device.

When media, sync and gaming run on a home network at the same time, check upstream tasks and router load first. If every device slows after one device starts a backup, the cause is usually queueing on the shared access link rather than the number of connected devices. Keep a stable route for important devices and schedule large sync jobs away from real-time tasks instead of making every device switch protocols repeatedly.

No protocol stays ahead on every device, access network and app. A sensible choice is a constraint-based process: eliminate routes with unsuitable exit regions, choose a topology with a stable local entry, then compare compatible protocols for resource use, recovery speed and app behavior. Keep a primary and backup combination; there is no need to test every node.

Build a repeatable testing and tuning process

Describe the current problem first

Effective troubleshooting starts with describing the symptom. Record the device platform, access network type, target app, selected region, route type and protocol. State whether the connection cannot be established, the page starts slowly, sustained transfer drops, real-time interaction breaks up or recovery fails after a network change. Different symptoms point to different layers; calling everything a “speed problem” removes direction from the next adjustment.

Also distinguish a general problem from an app-specific one. If the browser, Streaming and AI Tools all fail together, the entry, DNS or system proxy may be involved. If only a standalone client fails, check whether it follows the system proxy. If only one website fails, inspect exit interconnection, service status or traffic rules. The clearer the boundary, the fewer variables need to change.

Hold the environment constant and compare routes separately

Keep the device, access network, protocol and target app unchanged. Switch only between direct, relay and dedicated routes in the same region. Observe connection setup, first page response, sustained transfer and recovery after a short interruption. If one topology is clearly steadier during actual use, make it the candidate primary route. Do not change the exit country at the same time, or regional interconnection and content-service differences will enter the result.

Route comparisons should cover the times you actually use the service. Testing only when the network is quiet says little about peak-hour performance; testing only during congestion may capture a temporary local fault. There is no need for a complex score. Record which task is stable, which fails first and whether the symptom returns after switching back to the original route.

Hold the route constant and compare protocols

After choosing a candidate route, keep the entry, exit and app unchanged while switching protocols. Use Shadowsocks as a simple baseline, Trojan or VLESS to compare mature secure transport with a lightweight identity layer, and Hysteria2 or TUIC to observe recovery on unstable links. VMess suits client environments with established combinations. After each switch, let old app connections end and reopen the target app if necessary so an old session does not continue using the previous path.

Compare at least first connection, continuous use, background recovery and interface changes. On desktop, also observe idle resource use; on mobile, check idle behavior, heat and system background limits. If the difference appears in only one app, inspect its connection reuse and traffic rules. If all apps change together, the protocol or route is a more credible cause.

Verify that the exit and traffic rules match expectations

After connecting, use the site’s network check to confirm the current exit, then open your usual apps separately. If the exit is correct but an app still uses an old session, close and reopen it; in a browser, verify with a separate session. If the exit is unexpected, check the matched rule, system proxy and virtual network interface before comparing protocol performance.

After traffic rules change, check that local services remain accessible and that related domains have not been split across different exits. Login, media resources, file uploads and API requests may use different domains; routing only the main page through the target path can still leave features broken. Start rule debugging with a broader rule for the same category, confirm it works, then refine it gradually.

Keep primary and backup routes instead of chasing every change

A stable combination does not need to be replaced just because a new protocol name appears. The primary route should cover your most common tasks; the backup is for entry congestion, changing exit interconnection or quick recovery after a device changes networks. Ideally use different topologies so both routes do not depend on the same congestion point. After updating the subscription, confirm that existing node names and rules still work before making changes.

When choosing a plan, monthly subscriptions include ¥9.9/month with 60GB, ¥18/month with 250GB and ¥28/month with 500GB. Traffic resets monthly on the activation date, and mid-cycle upgrades are prorated by the remaining days. Traffic packages are ¥158/300GB, ¥358/1000GB and ¥658/3000GB; they remain available until used and never expire. Payment methods are Alipay / WeChat Pay / USDT, and the service offers a 60-day no-questions-asked refund. See the plans page for complete details. A technically suitable protocol and route do not change with plan capacity; choose a plan separately based on usage volume and period.

Roll back layer by layer when something fails

If a new setup does not work, restore the last working protocol first, then the last working route, and finally inspect the client and system network configuration. Reversing changes in this order quickly identifies the layer that introduced the problem. Do not keep stacking DNS, multiplexing, traffic-rule and system-proxy changes while the connection is failing; even if it happens to recover, the real cause will remain unclear.

Windows users who need to check desktop traffic rules, game compatibility and startup behavior can read Windows VPN picks and desktop testing. For a complete reinstall, subscription import and verification walkthrough, read Set up Windows from scratch. For questions about subscriptions, nodes, protocols, traffic rules and global mode, see VPN glossary for beginners.