1) Validate the basics
- Refresh the page.
- Start a new conversation.
- Sign out/in to your Google account.
2) Isolate: browser vs network
Try a private window
If it works there, it’s usually:
- an extension
- cache/cookies
- browser settings
Disable extensions
Especially:
- ad blockers
- script blockers
- privacy/security extensions
Switch networks
- Wi‑Fi ↔ 4G/5G
- another Wi‑Fi
3) Clear cookies/session
If the error persists in the same browser, clearing site cookies and cache often fixes session issues.
4) Account (work/school)
Work/school accounts can be restricted by organization policy. If possible, test with a personal account to compare.
5) If nothing works
Record:
- time of the error
- message shown
- browser/device
Then check Gemini support/community resources.