Cursor Failed to Activate License — 'License check failed: Connection reset by peer'

What this error means

Failed to activate your subscription — connection reset by peer / license server unreachable is a Cursor failure pattern reported for developers trying to fix cursor ide unable to activate or verify subscription due to network connectivity or firewall blocking license verification. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

Cursor relies on external license verification servers. Network issues (firewall, corporate proxies) cause activation failures despite valid subscriptions. Covered list has ‘model not available’ and ‘API key not working’ — NOT license/subscription activation errors. High commercial intent: affects paying users directly.

Common causes

• Cursor relies on external license verification servers. Network issues (firewall, corporate proxies) cause activation failures despite valid subscriptions. Covered list has ‘model not available’ and ‘API key not working’ — NOT license/subscription activation errors. High commercial intent: affects paying users directly.

Quick fixes

1. Confirm the exact error signature matches Failed to activate your subscription — connection reset by peer / license server unreachable.
2. Check the Cursor account, local tool state, and provider configuration involved in the failing workflow.
3. Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

• Verify the command, editor, extension, or API client that produced the error.
• Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
• Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

1. Capture the exact error message and the command, editor action, or request that triggered it.
2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
3. Review the source evidence below and compare it with your environment.
4. Apply one change at a time and rerun the smallest failing action.
5. Keep the working fix documented for the team or deployment environment.

How to prevent it

• Keep provider/tool configuration documented.
• Record non-secret diagnostics such as tool version, provider name, model name, and command path.
• Add a lightweight check before CI or production workflows depend on the tool.

Sources checked

• https://github.com/getcursor/cursor/issues
• https://discord.gg/cursor

Evidence note: Cursor relies on external license verification servers. Network issues (firewall, corporate proxies) cause activation failures despite valid subscriptions. Covered list has ‘model not available’ and ‘API key not working’ — NOT license/subscription activation errors. High commercial intent: affects paying users directly.

Related errors

• Cursor

FAQ

What should I check first?

Start with the exact Failed to activate your subscription — connection reset by peer / license server unreachable text and the smallest action that reproduces it.

Can I ignore this error?

No. Treat it as a failed Cursor workflow until the root cause is understood.

Is this guaranteed to have one fix?

No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.

How do I know the fix worked?

Rerun the same command, editor action, or request. The fix is working when that action completes without Failed to activate your subscription — connection reset by peer / license server unreachable.