
Fix Outlook 504 Gateway Timeout by Clearing Cache
If you're seeing a "504 Gateway Timeout" error in Outlook—especially when connecting to Exchange ...

If you're seeing a "504 Gateway Timeout" error in Outlook—especially when connecting to Exchange ...

You launch Microsoft Teams and see an error like "Can't connect to server" or "SSL certificate er...

You see "handshake did not complete after 5 seconds, retrying" or "peer not responding" in your W...

When you try to start a Remote Desktop session and get an error that port 3389 is already in use,...

You open Chrome on your Windows 10 PC and get an error saying "Profile authentication failed." Th...

When an application fails to start because a port is already in use, you need to free that port. ...