And while there's no problem when I put the dll on your servers I can't use the development server.
PlayerIOClient.PlayerIO.Authenticate is ok but client.Multiplayer.CreateJoinRoom throw this error :
System.NullReferenceException: Object reference not set to an instance of an object
at PlayerIOClient.Internal.identifier950.filterEndpoints (System.Collections.Generic.List`1 endpoints) [0x00000] in <filename unknown>:0
at PlayerIOClient.Internal.identifier950+identifier953.<CreateJoinRoom>b__6 (PlayerIOClient.Internal.identifier198 result) [0x00000] in <filename unknown>:0
at PlayerIOClient.Internal.identifier115+identifier824.<CreateJoinRoom>b__16 (PlayerIOClient.Internal.identifier198 returnValue) [0x00000] in <filename unknown>:0
at PlayerIOClient.Internal.identifier115+identifier815+identifier817[PlayerIOClient.Internal.identifier115+identifier191,PlayerIOClient.Internal.identifier115+identifier198,PlayerIOClient.PlayerIOError].MoveNext () [0x00000] in <filename unknown>:0
UnityEngine.Debug:LogError(Object)
PlayerIOClient.Internal.identifier817:MoveNext()
It's a bit annoying,
Thank you !