NETWORK / REQUIREMENTS
AI access starts with region and connection checks
A route carries your requests, but whether a service accepts them also depends on its regional availability, account requirements, and usage policies.
Region checks go beyond the egress label
AI services may check an egress IP’s registered location, account region, billing details, browser session, and security verification. A city name in a route label is only a starting point; it does not determine how the platform assesses your access. IP geolocation databases can also differ or lag behind updates. If you see a region notice, check the platform’s official supported regions rather than relying on a client label alone.
VPNCab offers routes in 110+ countries / 170+ routes, making it easier to choose an egress location based on a service’s supported regions. Coverage does not mean every route works with every AI tool. This page makes no guarantees about access to any specific platform; check each platform’s current rules for regional availability, account eligibility, and product features.
Streaming responses depend on a sustained connection
Chat responses usually arrive in chunks. A page loading successfully only shows that static assets and some requests can reach the service. Response generation may also use a persistent HTTP stream, WebSocket, or another connection. Network instability, proxy timeouts, switching networks during sleep, and interference from local security software can all interrupt a response. A fast-loading home page alone does not prove that an entire conversation will complete reliably.
To assess a route, sign in, send a simple request, watch the response stream, then test the features you actually use, such as file uploads or code completion. Keep the same egress location throughout the test so that automatic switching does not send successive requests from different regions. If a long response stops, check the platform status and your local network too; not every failure is caused by the egress route.
TOOLS / ROUTE MATCH
Compare tools and routes
The table below is a guide to network requirements, not a list of platforms guaranteed to work. The labels Premium, Standard, and Economy help explain route types; they do not indicate AI service authorization or success rates.
| Tool | What to check | Route requirements | Beyond the web experience |
|---|---|---|---|
| ChatGPT | Service region, sign-in session, continuous responses | Meet official regional requirements, keep egress consistent, and maintain the streaming connection | Check API account permissions and billing separately |
| Claude | Regional eligibility, sign-in checks, long-form responses | Choose a clear region, avoid switching routes mid-session, and check persistent connection performance | Confirm separately whether developer tools inherit proxy settings |
| Gemini | Google account, product region, and feature eligibility | Stable egress in a supported region; consistent routes for sign-in and use | Check developer API access and cloud project permissions separately |
| Copilot | Specific product, account type, and organization policies | Cover the domains the product needs and support persistent connections | The web assistant and GitHub Copilot do not share all requirements |
| Midjourney | Account eligibility, task submission, image asset loading | Ensure submissions and asset downloads work; avoid changing egress during a task | Use the web or Discord entry point according to the platform’s current guidance |
| Cursor | Sign-in callbacks, model requests, code indexing, and completions | Make sure IDE requests use the proxy and responses stream reliably | Integrated terminals and remote development environments may use different networks |
Chat tools: test sign-in and generation separately
ChatGPT, Claude, and Gemini can all show the same pattern: you’re signed in, but model requests fail. Sign-in, static assets, and generation APIs may use different domains, so a missing routing rule can affect some requests but not others. First identify whether the failure happens during sign-in, submission, or response generation, then check whether the relevant requests use the proxy. This is more useful than repeatedly clearing all browser data.
Creative and coding tools: test the full workflow
Successfully submitting a Midjourney task does not mean image previews and downloads will work too. Cursor opening normally does not prove that model requests, indexing, and sign-in callbacks are reachable. For Copilot, first identify the specific product: Microsoft’s web or productivity assistant and GitHub’s coding assistant have different account, authorization, and network requirements. One working does not confirm the other will.
ACCOUNT / SESSION
Sign-in and egress consistency
Check eligibility before starting a session
Before using an AI platform, review its supported regions and account requirements. Changing your network egress changes the route your traffic takes; it does not change your account’s region, age eligibility, organization permissions, or paid entitlements. Don’t provide inaccurate information or treat switching routes as a workaround for account restrictions. If the platform requires an account review, use its official appeal or support channels.
Sign-in may involve an identity provider, verification pages, and an app callback. Choose your egress location before you start and keep using the same route after signing in. Frequent region changes or overlapping sessions in multiple browsers may trigger additional security checks. If that happens, stop retrying, save the message, and follow the platform’s official guidance instead of repeatedly refreshing or switching locations.
Keep your VPNCab account separate from your tool accounts
VPNCab requires no email address; create an account with a username and password. This applies only to VPNCab—AI platforms may have different account requirements. Each platform manages its own AI tool subscriptions, API permissions, and billing. VPNCab plans do not include memberships or usage credits for these tools.
VPNCab supports unlimited simultaneous devices and works with Windows / macOS / iOS / Android / Linux. When using multiple devices, keep the egress region consistent for the task and check each device’s routing settings. Connecting a device to an international route does not mean every app will automatically use that same network path.
DEVELOPER / EXECUTION PATH
Web, API, and development environments
A browser test only confirms the browser’s route. Check the environment of the process that actually sends each request.
A web subscription does not grant API access
Web access relies on a browser session, cookies, and interactive sign-in. APIs generally require credentials, project permissions, available quota, and compliance with usage rules. Being able to chat on the website does not prove API access is enabled; an API authentication or balance error is not necessarily a route issue. Check the official documentation for the endpoint, model, and required permissions, then distinguish connection failures from service-level errors.
Command line: check the current terminal’s proxy environment
Some command-line tools read HTTP_PROXY, HTTPS_PROXY, or ALL_PROXY; others only use their own settings. Check the documentation for your SDK and client. Verify that the variables are set, the proxy protocol matches, and NO_PROXY is not sending the target domain directly. Use the proxy address configured in your local client; don’t copy a port from another device.
Running processes may not pick up changed environment variables automatically. Close and restart the relevant terminal or development tool, then send a minimal request. Logs can help identify the error type and request stage, but remove credentials, authorization headers, account details, and full request content before sharing them. Never publish raw debug output.
IDE plugins: check the interface and background processes separately
Cursor, GitHub Copilot, and other IDE plugins may connect through editor settings, the system proxy, or plugin-specific configuration. The editor’s terminal, extension host, and browser opened for sign-in may not inherit the same settings. Check the editor’s official proxy guidance, then test completions, chat, and authorization callbacks separately. Avoid stacking multiple proxy configurations.
With containers, remote hosts, or remote development extensions, identify whether requests run locally or remotely. A working local browser does not mean a container or remote process is configured for network access. A local address inside a container usually refers to the container itself; don’t assume it can reach the host’s proxy listener. Also check the proxy’s listening scope and access controls.
CI: the runner is the actual starting point
CI requests come from the runner; a client on your personal computer has no effect on them. Check the runner’s region, platform egress policies, and the connection methods allowed by your organization before deciding whether a proxy is needed. Store credentials in the CI platform’s protected secrets, not in the repository, build artifacts, or logs. Restrict access to secrets from untrusted jobs.
For streaming requests, check the SDK read timeout, overall job timeout, proxy idle timeout, and platform rate limits. Increasing a timeout only helps when the wait limit is too short; it won’t fix permission errors. Avoid unlimited retries after a network interruption. Follow the API’s retry guidance and remember that duplicate requests may incur additional charges.
DIAGNOSIS / OBSERVE FIRST
Troubleshoot by symptom
Record the message, when it appears, and the environment before changing settings. Change one thing at a time so you can identify what made a difference.
The page loads, but the request keeps waiting
Static pages and generation requests may use different domains. Check the platform status first, then see whether your routing rules cover generation requests, a browser extension is blocking the connection, or the proxy is ending the stream too early. Try a short request, then a longer one. Don’t judge a route by the home page alone.
A region or access eligibility notice appears
Check the product’s current supported regions and account requirements, then confirm that your actual egress location matches your expectations. Region notices can relate to IP geolocation, account settings, or organization policies; switching routes is no guarantee of a fix. Keep the sign-in route consistent. If the platform requires an account review, follow its official process.
The browser works, but the terminal or IDE cannot connect
First check whether the process sending the request inherits the proxy settings. Then verify the proxy protocol, bypass list, certificate trust, and whether execution is remote. Don’t disable TLS certificate checks to troubleshoot. If your environment uses an organization proxy, ask an administrator to confirm the trusted certificates and egress policy.
The API returns an authentication, rate limit, or quota error
A clear service-level error usually means the request reached a server, but check the response source to be sure. Verify that the credentials are valid, the project has permission, the model is available, and your quota and request rate comply with the rules. Follow the official response guidance instead of repeatedly switching routes.
Generation stops, or a submitted task’s assets won’t open
For interrupted responses, check the persistent connection, device sleep, network switching, and timeout settings. If a task was submitted but its assets won’t open, also check whether image or attachment domains use the right route. Note the error and identify whether it occurred during submission, generation, or download. For help, submit a troubleshooting report with sensitive information removed through the user panel.
For basic connection issues, see the Help Center. For account-specific issues, open a support ticket in the user panel.
ROUTE / FARE
Choose the region first, then the route type
Choose for the task, not by the name
Choose an egress location from the regions officially supported by the AI platform, then test your actual workflow. IEPL dedicated routes are like Premium rides, relayed routes like Standard rides, and direct routes like Economy rides. These labels describe how routes are set up; they are not passes for any particular AI tool. For long responses, code completion, or ongoing collaboration, focus on connection stability during the hours you use the service—not just whether a connection succeeds once.
To compare routes, keep the device, tool, and request content as consistent as possible, and test under similar conditions. Complete a real task before deciding which route to keep, and avoid switching midway through. Access results depend on your local network, the service’s policies, and your account status. A single test does not predict results across all tools or at all times.
Choose a billing option that fits how you use the service
VPNCab monthly plans are ¥9.9/month for 60GB, ¥18/month for 250GB, and ¥28/month for 500GB. Data resets monthly on the activation date; mid-cycle upgrades are prorated for the remaining days. Text chats, uploads, model assets, and other apps all affect usage. Check your client’s usage records rather than estimating a fixed allowance from the number of chats.
For occasional use, consider data packs: ¥158/300GB, ¥358/1000GB, and ¥658/3000GB. Data is used until depleted and never expires. VPNCab accepts Alipay / WeChat Pay / USDT and offers a 14-day money-back guarantee. Check the server page for routes, then the plans page for full pricing and billing terms.