How to Troubleshoot 404 Not Found Errors in Command Prompt - Chrome Error 400 Token Expired: Quick Solutions-How to Fix Chrome Browser Crashing on Android
Before changing system settings, save your work and note the exact error text so you can compare results after each step.
Extra verification checklist
- Restart the affected app after changing permissions or configuration files.
- Test the same workflow in a clean browser profile or a temporary user account.
- Compare the result on another network if the error may be connection related.