I had this same problem.
Somewhere in the settings should be an option to 'validate server
certificate" Uncheck that setting and you should be good to go.
On Sat, 14 Feb 2009, Helen Read wrote:
> I cannot connect to the WPA2 "UVM" network. It worked fine when it was called
> WPA2, and I went through the same config as before to set up "UVM". I get the
> "Additional information is required to connect to UVM", put in my NetID and
> password, then the "Additional information is required" pop-up returns, and I
> get a window Validate Server Certificate (The root Authority for this
> server's certificate is IPS Servidores blah blah blah). I hit OK, then get
> the "Additional information" pop-up asking me for credentials again, then the
> one about the server certificate, and round and round it goes.