How to Clear SSH Known Hosts and Fix Host Key Verification Failed - How to Fix a Task Scheduler App That Won't Launch on Mac-Redis Connection Refused? Check Your Firewall
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.