If you have set up Microsoft Defender for Endpoint, you can easily isolate devices from the network, and undo the isolation at any time.
In Barracuda XDR Dashboard, click ATR Settings > Firewalls.
Click the Microsoft Defender for Endpoint row.
Click Isolate/Unisolate Device.
Select one of the following:
Isolate
Unisolate
Type the machine’s hostname.
Click Submit.