On my laptop, running Windows 7, and my primary computer, running windows 8, my Photon PUN project, as well as the demo, works just fine.
However, on my secondary PC, running windows 8, as well as my friend's PC, running windows 8 as well, the build client isn't getting rooms. Output shows that its connected the the lobby, though.
Photon is able to get rooms while playing in the Unity editor on all of the PCs, though.
Why would it work in the play-mode in the Unity editor, but not in a build on just some PCs? Are there some pre-requisites that are required? Such as a certain .net update?