Anticheat Problem?

Late at night around 12pm - 3am Central us time I've been having issues connecting to this ip 72.1.147.66:27910

These are the erros i've been getting:
i've been getting erros about bad challanges no challange for address anticheat failing to load multiple reconnects more then 2 in a row and after a chain of a few reconnects the sever disconnects me.

Somtimes I have issues with anticheat in the q2 dir sometimes i take anticheat out of the dir and i connect right on the fly sometimes neither work...

[2006-12-07 02:35] No challenge for address.
[2006-12-07 02:36] Disconnected by server!

Is the server just down for maitnance at this time of night er? Yeah...