Photon Realtim frequently disconnects

I have a lot of problems with Photon Cloud in my project, so I'm not sure it's my problem.
Photon seems to have a lot of connectivity issues... frequently has problem establishing or maintaining a connection. For the realtime game I get "State: Disconnected, Timout: Disconnectd by server. The server did not get a response in time".
So, I guess the question is... how can the connectivity be improved, or how can I best deal with connection failure?