Failed to connect to server

[Former-GM-Circe]

I can't actually check to see if the IP is banned. That's something we'll need to get Pandora to do. However, since it's simply telling you that its failed to connect, then it's unlikely, I think.
Have you tried logging into the CP with the problematic wireless? What's it telling you there?

Is your wireless and mobile broadband being accessed from the same computer?
What setup do you have for both? Do they go through the same ISP?