Hmmm, I thought it fixed it this morning but now it doesn't seem to be working. I've completely turned off Defender & Windows Firewall but that doesn't seem to help. It's obviously something else on my side that's causing it, just not sure.
Edit: Got it working now. Nothing to do with Defender. Multibox feature working now too when it wasn't before (it's really cool).
Edit: Got it working now. Nothing to do with Defender. Multibox feature working now too when it wasn't before (it's really cool).