Yes I’ve checked if it’s the firewall, I’ve disabled windows firewall along with Avast’s firewall to no avail, I don’t think my phone has a firewall so it mustn’t have been that.
Device A: Windows 10 AudioRelay 1.0
Device B: realme 10 Pro 5G AudioRelay 1.0
Could you try the latest version available here:
There have been some changes to the network ports that AudioRelay use by default which could help.