This article addresses “How do I configure a WS TLS node, and why can’t it connect after import?” Using clients that support VLESS or VMess as examples, it explains how to enter WebSocket, TLS, Host, and SNI settings, and distinguishes the effects of node parameters, IP addresses, DNS, and the browser environment. No server-side changes are needed. First, have the complete link, subscription, or parameters provided by your provider ready.
1. Understand the key WS TLS fields
WS is the WebSocket transport, and TLS encrypts the connection. They are not standalone node protocols and are typically used with VLESS or VMess. Before configuring a node, make sure your client supports the relevant protocol and transport, and install a stable version from an official project source whenever possible.
- Address and port: Enter the server domain name or IP address and port supplied by your provider. Don’t guess.
- Credentials: VLESS typically uses a UUID. VMess may include additional parameters; enter them as provided.
- Transport: Select WebSocket and enter the original path, preserving the leading slash, capitalization, and query parameters.
- Host: The hostname used in the WebSocket request. It may differ from the connection address.
- TLS and SNI: Enable TLS and enter the SNI specified by your provider. This is usually the domain name covered by the certificate.
The address, Host, and SNI may differ. Don’t change them all to the same value just to make them “match.” Don’t enable “Skip certificate verification” just to get around an error, either, as this can disable server identity verification.
2. Import first, then check the parameters
- Update your client and open the node or configuration page. If you have a vless:// or vmess:// link, copy it and choose “Import from clipboard.” If you have a subscription URL, add it in subscription management and refresh it.
- Open the node editor and check the protocol, address, port, and UUID. Then confirm that the transport is set to WS, the full path is entered, and TLS is enabled. Links may contain credentials, so don’t post them on public websites asking others to decode them.
- Check Host and SNI. Depending on the client, SNI may be labeled “Server Name” or “serverName”; use the field that matches the setting’s meaning. If these parameters weren’t provided, ask your provider rather than filling them in at random.
- Save and select the node, then enable the system proxy. On a phone, you may also need to allow the client to create a VPN connection. Start in rule mode, visit a regular webpage, then test the target website.
- If you use a free subscription, select the node again after refreshing it. A subscription refresh may replace the existing configuration, so back it up before making manual changes.
A successful import only means the client recognized the configuration; it doesn’t mean the node is currently working. A latency test is no substitute for actually loading a webpage.
3. If you can’t connect, check the IP, DNS, and browser in turn
Start by checking the client log. For connection timeouts, first verify the address, port, network, and node status. For certificate errors, check your device’s date and time, SNI, and certificate domain. For WebSocket handshake errors, focus on the path and Host. Change one field at a time to make it easier to identify the cause.
Using an IP address for the connection does not mean Host and SNI should also be IP addresses. Replacing a domain with an IP at random can break certificate verification or request routing. If the connection domain cannot be resolved, check the client’s DNS settings and your local network. Avoid changing the node, DNS, and proxy mode all at once.
If the client connects but pages won’t open in the browser, check whether the system proxy is working, temporarily disable other proxy extensions, and compare results in an incognito window. The browser’s Secure DNS and the client’s DNS may use different resolution paths; consider the proxy mode when troubleshooting rather than disabling Secure DNS by default. If only a few websites have problems, the issue may also be related to the exit IP, login status, or the website’s risk controls.
Follow a consistent troubleshooting order: parameters, connection logs, proxy routing, DNS, then the browser environment. If you still can’t connect, testing a valid node from a trusted source can be more effective than repeatedly changing the same configuration.