Fix Microsoft Teams Connection Refused Due to Firewall Settings - Fix OneDrive Sync Blocked by Third-Party Antivirus File Lock-Fix Windows Activation Dependency Conflict via Command Prompt
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.