
Windows Defender Cannot Connect: Troubleshooting Checklist
You open Windows Security and see a message like "Windows Defender cannot connect" or "Check your...
Software troubleshooting desk

You open Windows Security and see a message like "Windows Defender cannot connect" or "Check your...

You open Microsoft Teams and see a 502 Bad Gateway error. This usually means you...

You try to install or update an app from the Microsoft Store and see an error about version misma...

If you see an SSL certificate error when Windows Defender tries to update or scan, it usually poi...

You open Windows Security and see 'Page not available' or 'Failed to load permissions'. This usua...

You try to sign in to Microsoft Teams, but it fails with a generic network error. This is often d...