Windows Defender Antivirus Cannot Enable Audio Devices

[J_B]

Correct, the firewall is on my work machine (Windows Defender). I had them allow the RoonBridge and add all the ports mentioned in this thread:

Roon Bridge Network Ports

As I mentioned in my original post I have already allowed through ports UDP 9003 and TCP 9100 - 9200 and it is not working. Looking at the logs it would appear that the Core is trying to connect to jsonserver on the Bridge. However jsonserver appears to start on a random port each time. Any more ideas?

There is no difference so far. He has asked me to give him the firewall logs to see which ports are being dropped. I will do this next.