Was you ever staff on a IOS Server, to me it looks like your IP Ranges are not listed so your being booted out. The iPhone System uses global IP ranges for authentication oppose to local IP ranges. So if your IP is not set, or incorrect you will get this error. I'll see if we can get it fixed for you (If its the global IP Range issue).
Edit:
I contacted support in charge of accounts, and it seems you don't have any global IP Range set (They reset the IP anyways just incase). However I'm thinking it could be your connection. Did you try with another connection.
also please try to use
[email protected] if you haven't already tried. They answer tickets as soon as they can, sometimes these tickets get lost in spam.