How to use a VPN? The part that usually causes trouble is not clicking “Connect,” but understanding the different roles of your account, subscription link, client, protocol, and route. The full process is: confirm service status in the account panel, obtain a compatible subscription, import and update it, choose a suitable route, then verify your exit IP, DNS, and split-tunneling results. Following this order helps pinpoint the faulty step instead of repeatedly reinstalling the software.
This guide assumes no prior knowledge of networking terminology. Each step explains what you should normally see and what to check first when the result differs. Interface names vary slightly by operating system, but the underlying checks are the same: the client must read a valid configuration, the configuration must connect to the entry point, system traffic must follow the proxy tunnel according to the rules, and DNS queries must use a path that matches the current mode.
First, confirm what you received after placing your order
After placing your order, open the service account panel first. Do not rush to install a client at random from search results. The panel usually contains your plan status, subscription access, client downloads, and route information. Confirm that the order is active, that the page shows an available service, and that you can find an entry clearly labeled “Subscription,” “Import to client,” or something similar.
A subscription link is not an ordinary web address. It usually lets a client retrieve a set of route configurations, which may include server addresses, ports, authentication details, protocol parameters, and route names. If you paste the link into a browser and see encoded text, configuration data, or a download prompt, that does not mean the link is broken; browsers are simply not the main tools for consuming this type of data.
- ✅ The account panel shows that the service is active rather than still pending.
- ✅ Choose software that matches your current operating system from the client download section.
- ✅ Locate the subscription link or one-click import option, and confirm that it matches the format required by the client you plan to use.
- ✅ Treat the subscription link as an access credential. Paste it only into a trusted client, and never share or publicly display it.
- ❌ Do not mistake a route name for a subscription link, and do not paste your account panel URL into the subscription field.
If the panel offers a copied link, a downloadable configuration, and one-click import, prioritize the method recommended in the official documentation for your client. One-click import depends on the system recognizing the link protocol correctly; if nothing opens, copy the link and add it manually. Configuration files must be handled through the client’s “Import from file” option and cannot be run directly as installers.
Check protocol compatibility before choosing a client
The service, client, and protocol are three different layers. The service provides routes and authentication settings, the client reads those settings and takes over system traffic, and the protocol determines how data is transported between the client and server. Even a polished client cannot connect if it does not support the protocol or transport parameters used by the subscription.
| Protocol | Key characteristics | What to confirm during import | Common limitations |
|---|---|---|---|
| Shadowsocks | A relatively compact structure, usually containing the server, port, encryption method, and password. | Check whether the client supports the specified encryption method and whether all subscription fields are present. | Having a route configuration does not mean all system traffic will automatically use the tunnel; that still depends on proxy or virtual network adapter mode. |
| VMess | A protocol in the V2Ray ecosystem, commonly used with different transport layers. | The authentication identifier, transport method, path, and security parameters must match. | Older clients may not correctly parse newer configuration fields used by the server. |
| Trojan | Usually transmitted over a TLS connection, making it sensitive to the domain name and certificate checks. | Do not manually alter the server name, TLS settings, or authentication details incorrectly. | An incorrect system clock, DNS resolution error, or failed certificate check can interrupt the connection. |
| VLESS | A lightweight authentication layer; real-world performance also depends on the transport and security mechanisms paired with it. | Do not look only at the name “VLESS”; also verify the transport, TLS, and flow-control parameters. | Support for the base protocol does not guarantee support for every extension used in the configuration. |
| Hysteria2 | Based on QUIC and UDP, and typically paired with congestion control for unstable networks. | Confirm that the client explicitly supports Hysteria2 rather than a similarly named older implementation. | If the current network restricts UDP, the connection may time out or fail during the handshake. |
| TUIC | Also based on QUIC and UDP, with dedicated authentication and congestion-control parameters in the configuration. | Check that the client version matches the subscription’s generated format. | When the network handles UDP poorly, test a route protocol with broader compatibility. |
Windows clients commonly offer two ways to take over traffic: “system proxy” and “virtual network adapter.” System proxy affects only apps that follow the system proxy settings; virtual network adapter mode can handle more apps that ignore system proxy settings, but usually requires additional permissions. On macOS, enabling a network extension prompts the system for approval. If permission is denied, the client may show that the configuration exists while still being unable to take over traffic.
Android and iOS clients typically create a local tunnel through the VPN interface provided by the operating system. A system authorization prompt on the first connection is normal. Linux depends more heavily on the distribution, desktop proxy settings, and command-line implementation: after starting a local proxy port, you still need to configure the browser, terminal tools, or system routes to use that port explicitly.
Import the subscription and check the update result
After installation, look in the client for “Subscriptions,” “Configuration sources,” “Remote configurations,” or a similar entry. Paste and save the subscription link, then run an update manually. Normally, a route list appears, with at least a recognizable name for each route. If the list is empty, shows only raw text, or reports a parsing error, the problem is usually format compatibility; the connection stage has not started yet.
- Copy: Copy the complete subscription link from the account panel. Do not select only part of it, and do not add spaces or explanatory text before or after it.
- Add: Add a remote subscription in the client’s subscription manager instead of entering the link in a single-node server address field.
- Update: After saving, refresh the subscription manually and check whether the client reports success and whether the route list changes.
- Select: Choose a route from the list and confirm that the active proxy group or outbound rule actually references it.
- Connect: Enable system proxy or virtual network adapter mode, then wait for the client status to change from disconnected to connected.
Subscription formats are not fully universal. Some clients read generic URIs, some require dedicated configuration structures, and others use Clash, Surge, or sing-box-style configurations. Even when the underlying protocol is the same, different clients may organize the required fields differently. If the service panel offers several subscription options, choose one by client name or configuration format; do not assume a shorter link is the better choice.
When an update fails, first distinguish “download failed” from “parsing failed” in the client logs. A download failure means the client did not retrieve the subscription and may involve an expired link, the current network connection, the system clock, or certificate verification. A parsing failure means the content was downloaded but its format or fields are not recognized by the client. The fixes differ, and switching routes blindly will not solve a subscription download problem.
Subscription troubleshooting order
Account status → Is the link complete? → Does the client format match?
→ Can the subscription be downloaded? → Can the configuration be parsed? → Does a route list appear?
→ Select a route → Enable traffic takeover → Verify exit IP and DNS
If the route list worked before but the service later changed node parameters, the client may keep an outdated cached configuration. Update the subscription first, then select a route again. Only if the update still fails should you consider deleting the local subscription and adding it again. Uninstalling the client immediately also removes logs and existing settings, so it is not a good first step.
Understand direct, relayed, and IEPL routes when choosing a route
Route names often include labels such as direct, relay, or IEPL, but these describe the network path rather than the protocol. The same protocol can run over different paths, and the same path can carry different protocols. Consider reachability of the entry point, current network quality, exit region, and intended use together, rather than focusing only on whether the name includes “dedicated line.”
Direct routes usually mean that the client connects straight to an overseas server over the public internet. The path is simple, but quality depends more heavily on the local carrier network, international gateways, and routing changes. It may perform well when conditions are good, but congestion can cause jitter, packet loss, or handshake difficulties.
Relayed routes usually connect first to a nearby or more reachable entry point, then forward traffic through the service network to an overseas exit. The goal is to control part of the path, but the final result still depends on entry quality, the relay link, and exit load. A relay is not automatically better than a direct route in every region or at every time.
IEPL dedicated lines originally referred to a category of international Ethernet private lines, emphasizing controlled point-to-point transport. For consumer services, the label may mean that the provider uses dedicated transport on part of the path and combines it with entry and exit nodes. Labeling practices vary between services, so check the route description and judge by connection stability and actual routing performance.
| Route type | Path characteristics | When to test it first | Alternative to try if it fails |
|---|---|---|---|
| Direct | The local network connects directly to an overseas entry point, with the path heavily affected by public internet routing. | The current network’s international gateway is stable, or you need to check basic connectivity first. | Try a relay route in the same region, or change the protocol to distinguish a path issue from a protocol issue. |
| Relay | Traffic reaches a nearby entry point first, then is forwarded by the service network to the target exit. | Direct routes show obvious jitter, or cross-network routing is unstable. | Change the entry region or test a direct route to determine whether the relay entry point is the bottleneck. |
| IEPL | Some paths use controlled transport; refer to the route description for the exact coverage. | Situations that are sensitive to sustained connections, remote collaboration, and stable data transfer. | Check whether the entry point is reachable, then compare other paths to the same exit. |
For the first connection, choose a route that is relatively close geographically, clearly named, and compatible with the protocol. Do not change the protocol, route, split-tunneling mode, and DNS all at once; the more variables you change, the harder it is to identify what helped. Establish a working baseline first, then adjust the exit according to the destination region and app requirements.
After connecting successfully, check the exit IP, DNS, and split tunneling
A client showing “Connected” only means the local program believes the tunnel is established; it does not mean every app is using the route as expected. Check at least the exit IP, DNS resolution, and target app. If a browser can access international websites but terminal tools or games still connect directly, the issue is usually the traffic takeover mode or split-tunneling rules, not that the route is completely unavailable.
First, confirm that the exit IP has changed
Open a trusted IP-checking page, note the displayed exit region and network provider, then compare them with the route selected in the client. The exit region does not need to match a node name exactly, but if it still shows your local network, the browser has not entered the proxy tunnel. Check whether system proxy is enabled, whether the browser uses separate proxy settings, and whether the client’s current rules classify the test site as direct.
Next, check the DNS resolution path
A DNS leak usually means traffic reaches the target site through the proxy exit while DNS queries are still sent directly to a resolver on the local network. This makes the access path and resolution path inconsistent and may cause region-based DNS to return unsuitable addresses. On a DNS test page, focus on whether the resolvers still clearly belong to the local access network rather than simply whether the page says “Passed.”
The browser’s secure DNS, the system’s encrypted DNS, and the client’s built-in DNS may all be active at once. More enabled mechanisms are not necessarily better; competing systems can cause some domains to use system resolution and others to use the client’s resolver. In virtual network adapter mode, the client should usually handle DNS according to its configuration. In system proxy mode, understand that system queries from apps that ignore the proxy may still use the default network.
Finally, review the split-tunneling rules
Split-tunneling rules determine which traffic uses the proxy, which remains direct, and which is blocked. Common conditions include domains, domain categories, destination addresses, application processes, and destination ports. Rules are generally matched in order, so a broad rule near the top can override a precise rule below it. For example, if a domain is first classified as direct by a regional rule, a later proxy rule will not take effect.
- ✅ The IP check broadly matches the selected exit region.
- ✅ The DNS test does not consistently show a local resolution path that conflicts with the current configuration.
- ✅ Test real access separately in the browser, office software, and terminal tools.
- ✅ In rule mode, confirm that the target domain matched a proxy rule rather than relying only on the client’s green status.
- ❌ Do not run multiple clients that modify the system proxy or network extensions at the same time.
Troubleshoot by layer when the connection fails
The most effective troubleshooting method is not constantly changing software, but identifying the layer where the failure occurs. Break the problem into subscription, configuration parsing, node handshake, system traffic takeover, DNS, and the target app. Verify one layer before moving to the next; if the previous layer fails, adjusting the next one is usually pointless.
The client shows no route list
Update the subscription manually and check the logs. If it cannot download the content, copy the link again from the account panel and confirm the service status and system time. If the format is unsupported, choose the subscription type that matches the client in the panel or install the client recommended in the official documentation. If you imported a configuration file, make sure an editor did not change its extension or encoding.
Routes are present, but every connection times out
When every route times out at once, the cause is more likely a local network restriction, system firewall, client permission, or protocol compatibility issue. Exit other network proxy tools, confirm that the client has permission to create a network extension or virtual network adapter, then test routes using different transport methods. If UDP-based Hysteria2 or TUIC cannot complete the handshake while TCP-and-TLS routes work, the current network may handle UDP poorly.
The client says connected, but webpages do not open
Check DNS and routing first. Try a known working site, then see whether the client log records browser requests. If there is no browser traffic in the log at all, system proxy or the virtual network adapter was not enabled successfully. If requests appear but domain resolution fails, check the client’s DNS configuration. If only specific sites fail, the cause may be split-tunneling rules, the exit region, or restrictions imposed by the destination service.
The browser works, but other apps do not
Browsers often read the system proxy, while some apps create their own connections and ignore it. If the client supports it, enable virtual network adapter mode, or configure a proxy specifically for the app. Command-line tools may also read environment variables or their own configuration files, so the desktop system’s proxy switch alone is not enough.
Local websites become slower after connecting
Check whether global proxy mode is enabled. Global mode sends local sites through an overseas exit as well, which can naturally make the path longer. After switching to rule-based split tunneling, keep frequently used local sites and LAN addresses direct, and send only destinations that need international routes through the proxy. If the rules are outdated, update the client subscription and rule resources before checking the match logs.
For routine maintenance, monitor only a few status points
After the first successful connection, there is no need to change low-level parameters frequently. For everyday use, keep the client version and subscription configuration in sync. When routes change, update the subscription first. If a client update triggers a new permission prompt, confirm the network extension status again. After a long period without use, begin troubleshooting with account status and subscription refresh.
Avoid manually changing the server name, transport path, TLS server name, or authentication fields generated by the subscription. These parameters are interconnected, and changing one can easily cause a handshake failure. If you only want routes to be easier to identify, use the client’s local notes feature, while keeping the original information that distinguishes regions, protocols, or paths visible.
Split-tunneling rules should also remain understandable. The more complex the rules, the harder it is to trace a misclassification. Keep clear direct, proxy, and reject behaviors first, then add exceptions as needed. When a specific app behaves unexpectedly, inspect its destination domains and addresses instead of switching all traffic to global proxy mode.
The complete first-use workflow is now clear: obtain the correct subscription from the account panel, choose a compatible client, import and refresh the configuration, understand the different route paths, enable the appropriate traffic takeover mode, and verify the result through the exit IP, DNS, and split-tunneling rules. When problems occur later, work backward through the same sequence to quickly identify whether the cause is the service status, client configuration, local network, or target app.