I have noticed this recently on machines that had a proxy enabled in Internet Explorer's LAN settings. After disabling this they no longer had the problem.

Dan Taube
Call Center Supervisor
Associate IT Support
University Computer Help Desk
Illinois State University



Kyle Torkelson wrote:
I agree...All of a sudden a bunch of laptops that were working this month are failing the 
Certificate Revocation...I have added and enabled ".ipsca.com" and "ends" to 
the Unauthenticated/Temporary/Quarantine roles per the release notes and config docs for 4.7.1 but 
it seems like this week I've had to turn off the revocation checking on each client...

Perhaps, IPSCA CRL site is experiencing problems??  Or, is this a Cisco issue??

Kyle




-----Original Message-----
From: Cisco Clean Access Users and Administrators 
[mailto:[email protected]] On Behalf Of Mike Diggins
Sent: Tuesday, January 26, 2010 5:50 PM
To: [email protected]
Subject: Re: IPSCA Certificate Revocation


I see this periodically with our Verisign certificates on CCA 4.1.10 (Agent), but there doesn't seem to be any pattern to it. A computer that is working fine will suddenly start getting Certificate Revocation Check failures. Then it will start working again and all is fine.

In 4.7.1 they allow you to turn off the CRL check, which I plan to do, if we ever get there!

-Mike


On Tue, 26 Jan 2010, Kyle Torkelson wrote:

Are any other schools getting the Certificate Revocation error when using IPSCA 
certificates?  I thought that if I added the CRL distribution point as a host 
under Traffic
Control for all of my User Roles to connect to that that would allow XP, Vista, 
and Windows 7 to connect to and check.  However, I’ve had to start doing the 
“uncheck check
for server and publisher cert revocation) as a temporary workaround.


Any suggestions???


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