brief window of opportunity to log in via windows

Hi all, I've got freeradius 2.1.10 running PEAP/MS-CHAP. Everything seems to be working fine, but we've noticed a bit of an issue with our Windows clients. It seems that after selecting our SSID for the first time, they are prompted for their username & password. Once those are entered they get a prompt to accept our certificate and then they are in. It seems though that they must enter their username & password fairly quickly. If they don't enter them within about 30 seconds, the connection times out and they have to start over again. Is there something on the radius end of things that I can do to adjust this timeout? Brian Gold System Administrator Bard College at Simon's Rock