Recently upgraded my project to Unity 5.0.2. Previously I was using 4.6.3. In my previous builds, networking was connecting fine and everything was connecting as it should. When I upgraded to Unity 5.0.2, networking stopped working for iOS devices. My player setting are:
Scripting Backend: IL2CPP
Target Device: iPhone + iPad
Target Solution: Native
Architecture: Universal
The errors only seem to appear on the client side when the client tries to connect to the server device. I have tried networking between 2 instances of the project in Unity on different computers and it connects fine. The errors only appear when an iOS device is involved
I have the same problem with multiplayer-netrowking on my iPhone 6 – perhaps you might care to join the UNET channel on irc.freenode.net (#unity3d-unet)?