We have seen many times that NAC agent refuse to pop-up on different OSes. Below is the list of things we check for this type of issue:
1. Check the proxy server setting in IE - there should be no proxy server configured.
2. Check if IE works in offline mode. It should NOT work in offline mode, uncheck 'Work Offline' in IE's tools
3. Check if IE is crashing. If IE is crashing, uninstall and reinstall IE.
4. DNS issue (check nslookup). If nslookup fails, check if static DNS server is configured.
5. Check if the AV software is blocking the NAC agent.
6. Check if Window firewall or any 3rd party firewall is blocking the NAC agent.
7. Use MalwareBytes to check and remove Trojans.
8. Make a backup and then replace the jscript.dll file under C:\Windows\System32\ and/or C:\Windows\SysWOW64\ (for 64 bits computers) folders.
---
Dennis Xu
Network Analyst, Computing and Communication Services
University of Guelph
5198244120 x 56217
----- Original Message -----
From: "Aaron Abitia" <[log in to unmask]>
To: [log in to unmask]
Sent: Tuesday, January 24, 2012 1:41:14 PM
Subject: Re: NAC Agent will not pop-up
Nick,
We have seen this before...for us it happened because the user was stuck inside NAC and wasn't logged out as it normally would be and our logout timers didn't work for some reason on that host. If you do a search for the username (and your situation matches ours), you'll see that username in there...delete it and the Agent will pop up immediately.
-Aaron
On Tue, Jan 24, 2012 at 9:55 AM, Nick Recchia < [log in to unmask] > wrote:
Hi,
NAC Agent will not pop-up! Have any of you experienced an issue like this on a student user's laptop and successfully resolved it?
The issue at hand is this:
Windows 64bit (Home Premium) successfully installed the NAC Agent (nacagentsetup-win-4.9.0.33), however, following a successful installation the login window will not show. As you know, under normal circumstances it will pop-up automatically. The icon at the bottom by the clock will recognize and accept a 'right-click' (see attachment), however, none of the listed options will respond- except for 'Exit'. The NAC agent also indicates that the user is logged in, when in fact no login information has been provided.
The unit is not able to authenticate and get from the 'unauthenticated role' to the 'temporary role' due to this issue.
The unit is new and is clean (virus & malware free). The unit did have a trial version of McAfee that has been removed via the removal tool, as well as Webroot Secure Anywhere Complete- which has been removed per vendor listed instructions on there website (i.e. via control panel). I have attempted uninstalling and reinstalling the NAC Agent with no change in the problem at hand.
I have submitted a TAC case, but they do not have any ideas at this point. This is one isolated case at this point.
We are running NAC Appliance 4.9
Thanks for your time.
Sincerely,
-Nick
--
Nicholas Recchia, Ed.D.
Security Administrator
ITS - Security Services
infosec.usfca.edu
University of San Francisco
Lone Mountain North - 236a
2130 Fulton Street
San Francisco, CA 94117
ITS Help Desk, Phone: 415-422-6668 , E-mail: [log in to unmask]
Fax: 415-422-6719
--
Aaron Abitia
Network Analyst
Network Administration, ITS
Cal Poly State University
Tel: 805.756.1295
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