Cursor still reported an error after logging in to GitHub, and the official Common Issues has actually given a troubleshooting entrance. Cursor's FAQ mentions GitHub login issues, logging out of GitHub, and network issues as common items. The official help page is Cursor Common Issues.
Don't rush to reload, clear the conversation first
Many authorization errors are not due to the account not being linked, but the old session, old token, or browser callback not being refreshed. The Cursor FAQ mentions that GitHub login issues can be logged out with 'Sign Out of GitHub' in the command panel before reauthorizing. If you are using GitHub integrations, you can also disconnect and reconnect GitHub in Integrations.
If it is a corporate network, it depends on the network layer
The Cursor FAQ also specifically mentions that the AI feature relies on HTTP/2 and can be problematic under corporate networks, VPNs, or proxies; If this is the case, it is recommended to enable 'Disable HTTP/2' in the app settings to force revert to HTTP/1.1. Many cases where "login is successful but still not available" are essentially blocked by the network layer blocking subsequent requests.
Practical troubleshooting sequence
- Log out of GitHub before reauthorizing.
- Check the GitHub connection status in your Cursor settings.
- If under a corporate network or proxy, disable HTTP/2 testing as officially recommended.
Cursor's GitHub issues are often not "it can't connect", but "the authorization or network link is not refreshed".