I have a PIX 515 setup for VPN access for external users. I'm using Win2k pro using pptp and l2tp/ipsec as a VPN client and Win2k server for Radius server. The problem I'm having is I'm getting error "691 -Access denied because username and/or password is invalid on the domain". I know I'm typing in the correct username and password. If I check the Event log on the Radius server it say that access has been granted to the user. can anyone please help