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PN Agent Icons Disappearing, in the Citrix XenApp / Presentation Server forum on BrianMadden.com

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Mike Zamborini posted on 05-19-2008 2:32 PM
We are running the 10.15 client for PN Agent, on 24 laptops. The laptops seem to mysteriously have the PN agent icons disappear. We have been digging on both the network layer and the laptop driver/setting layer to investigate. The icons will disappear between 5 and 20 minutes of not using the machines. When you ping the laptop from another machine, it DOES respond to PING. The PN agent (in System tray) shows as being offline. When PN agent seems to be offline, if you ping the machine, it will turn the PN agent back online and the icons will then appear.....

The laptops are Lenovo T61's.

The current work-around is to ping all the machines, then they don't have the PN agent go offline....

Any help is appreciated!

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Sam Rodriguez replied on 05-19-2008 3:03 PM
PN Agent application icon enumeration works over the XML service, which shares (by default) port 80 (http). In the interim, have users Open IE. Click on and uncheck .

If you're using logon scripts, you may want to append a line that turns off the "Work Offline" feature of IE. http://support.microsoft.com/kb/195730.

On each TS server local GPO, I also turn on a couple of addl features.

\Local Computer Policy\Computer Configuration\Administrative
Templates\System\Scripts

"Run logon scripts synchronously" = Enabled

\Local Computer Policy\Computer Configuration\Administrative
Templates\System\Logon

"Always wait for the network at computer startup and logon" = Enabled

------

Not 100% sure this will do it for you, but please post back results,

Samuel A. Rodriguez
Sr. Systems Administrator

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Mike Zamborini replied on 05-19-2008 3:20 PM
Thanks for the reply.

I have since upgraded to the latest Citrix client 10.20.

I don't believe this is an "IE offline" issue - IE is ALREADY online - and I have gone to offline mode in IE and cannot get this to re-create the issue.

Any help is appreciated!
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Mike Zamborini replied on 05-19-2008 4:23 PM
Here's the exact error when you mouse over the icon in System Tray:

Citrix Program Neighborhood agent - No connectivity

Some other things that have been modified since the last update:
Disabled Anti-virus on the local machine
By-passed proxy







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Sam Rodriguez replied on 05-19-2008 6:10 PM
OK, my next suspicion is a problem with the XML service (or broker). Actually was my first suspicion, but since you said that the icons would come back (re-enumerating), I sought a different possibility. Check here: http://support.citrix.com/article/CTX115518

Hope this helps,

Samuel A. Rodriguez
Sr. Systems Administrator

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Mike Zamborini replied on 05-20-2008 4:11 PM
Hi Sam

That's not exactly what's happening, I only see a line through the system tray icon for PN agent when I do see the issue, and again, when I mouse-over it, it has the error message that I reported.

I don't believe it's a server-side PN agent server issue, I feel like this is at the client level...Thanks for helping!

Mike
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Alan Osborne replied on 05-20-2008 5:56 PM
If you download and run TCPView from Sysinternals, do you see a TCP session connecting to the correct FQDN for the WI server for the PN agent? What port(s) are connected?

Alan Osborne
President (MCSE, CCNA, VCP, CCA)
VCIT Consulting - Citrix/Terminal Services Remote Desktop Solutions for SMB
p: 604-288-7325
c: 778-836-8025
web: http://www.vcit.ca
blog: http://www.vcit.ca/wordpress

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Greg A replied on 05-20-2008 8:52 PM
Sounds like your power saving features on your laptops.
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Mike Zamborini replied on 05-21-2008 1:00 PM
I don't believe it's a power saving feature as I've disabled all power saving in the BIOS, and I've tried a different wireless card (Cisco PCMCIA) - still the same results...
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Sam Rodriguez replied on 05-21-2008 4:11 PM
Hmmm, You're losing your connection somehow. Did you check the wireless NIC driver for Power Options? Also, you've probably read this one before http://www.sessioncomputing.com/PDF/CitrixWAN_BestPracticesWhitePaper.pdf, but I'd thought I'd drop it in here anyway.

Samuel A. Rodriguez
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Greg A replied on 05-21-2008 6:01 PM
How about Windows power savings? Check it with the actual user that is logged in.


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I don't believe it's a power saving feature as I've disabled all power saving in the BIOS, and I've tried a different wireless card (Cisco PCMCIA) - still the same results...
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