
How to Configure Windows Defender Firewall Settings for a Network
If you're having trouble with network connectivity or need to allow an app through the firewall, ...
Software troubleshooting desk

If you're having trouble with network connectivity or need to allow an app through the firewall, ...

After a Windows update, you might click the Windows Security icon and nothing happens, or the app...

When Outlook suddenly reports it cannot connect to the internet, you may still be able to browse ...

You might see a 'port already allocated' error when Windows Update tries to use a specific port t...

If Outlook shows "cannot connect to IMAP" or similar errors, it usually points to a server, port,...

Outlook error 0x80040115 usually appears as "Connection refused" or "Cannot start Microsoft Outlo...