
Windows Defender 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...
Software troubleshooting desk

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

You click 'Check for updates,' see 'Pending install,' and it stays that way for hours. The progre...

When you see a 502 Bad Gateway error in Outlook, it usually means the server rec...

You see a sync error in Windows Security that says something like “Something went wrong. Try to s...

You see 'Resolving file locked conflict' in OneDrive sync status and the progress bar doesn't mov...

You're trying to add an email account to Outlook and get a DNS error—something like 'The connecti...