We have found that Mcafee and Norton blocks the DNS (randomly).

Chuck Thetford
TWU

-----Original Message-----
From: Cisco Clean Access Users and Administrators
[mailto:[log in to unmask]] On Behalf Of Dennis Xu
Sent: Thursday, September 04, 2008 8:18 AM
To: [log in to unmask]
Subject: CCA Connectivity Issue

After the move-in period, we had about 10 users randomly having 
connectivity issues to CAS. They can get IP from our Central DHCP 
server(CAS works as DHCP passthrough). But the dns lookup timed out. For

the users having CCA Agent installed, the Agent did not pop up. It looks

like the client cannot talk to CAS at all. Sometimes a 'repair'  could 
fix the issue. Anyone has seen the similar issue?

Thanks,
Dennis