[THIN] Re: Session Down State

  • From: Angela Smith <angela_smith9@xxxxxxxxxxx>
  • To: "thin@xxxxxxxxxxxxx" <thin@xxxxxxxxxxxxx>
  • Date: Wed, 14 Nov 2012 15:36:19 +1100

Hi Pat Can you confirm your server load goes to 10000 when this occurs.  I have 
an issue where session is in a down state and load=10000 Just want to reconfirm 
before applying these hotfixes.  Like you the down state issue occurred after 
patching.. ThanksAng
 Date: Tue, 13 Nov 2012 22:56:47 -0500
Subject: [THIN] Re: Session Down State
From: strangedog@xxxxxxxxx
To: thin@xxxxxxxxxxxxx

Per MS, the issue indeed extends to both listeners, ICA and RDP.  There has not 
been a security hotfix for Termsrv.dll for years.  A couple of supporting 
components got hotfixed in March, but termsrv.dll was left out.  Either of the 
two articles below fix the issue.  I use the newer one (977629) as it has 
tested without issue and might keep me out of hot water down the road.


Here is the Citrix writeup: http://support.citrix.com/article/CTX133141Here is 
Microsoft's writeup: http://support.microsoft.com/kb/2653956

This is good info to keep on file for anyone dealing with Citrix/Terminal 
Services on 2003.

Patrick CoughlinCCIA, MCSE....

On Tue, Nov 13, 2012 at 7:45 AM, Andrew Wood <andrew.wood@xxxxxxxxxxxxxxxx> 

Makes sense to me.  I only ever experienced the issue in a full TS environment 
(well XenApp actually). But it could happen either to RDP or ICA connections. 
Rarely both at the same time – so you could be limping along with RDP broken 
and ICA fine, or vice versa. In the event log there would be an error message 
along the lines of an RDP (or ICA) component (a .dll) was 
missing/corrupt/illegal – so the service was unavailable. There was a 
suggestion in other KB articles that AV was modifying  the file in some way and 
it should be excluded. This was not the case. 

 I found the only way to fix the problem was to rebuild up until I came across 
the patch.


 From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf 
Of Hutchinson, Alan

Sent: 13 November 2012 12:10
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Session Down State
Does this apply to any server (Windows 2003)? i.e. terminal services as opposed 
to a pure terminal server. We're occasionally seeing a down RDP-Tcp listener 
after a reboot but not just on terminal servers. Curiously those that are 
terminal servers usually have the ICA-Tcp listener up !!. Seems to happen more 
on our VMs (VMware) but last week I had it on a physical box. It's not 100% 
clear from the KB below.

 Let me know if any of that didn't make any sense.




From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of 
Andrew Wood

Sent: 12 November 2012 17:15
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Session Down State

..was just typing *this will be it* .. then I see Ronnie has already replied. 

From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of 
Raffensberger, Stephen D

Sent: 07 November 2012 13:14
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Session Down State 

Ronnie, Try this…http://support.microsoft.com/kb/958476

 Steve Raffensberger

Produban USsraffens@xxxxxxxxxxx

From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of 
Hamilton, Ronnie

Sent: Wednesday, November 07, 2012 5:36 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Session Down State
Hi, Just been patching my Windows 203 Servers with the last 3 months windows 
patches, I was my doubts  but have now proved that when I put these patches on 
every time I reboot I get a session down.

 I have just finished rebuilding a couple of servers and have one still to do.  
So I tried patching another one and same problem, has anyone identified the 
patch or had similar issues lately.

 This there were 30 patches in all, going to have to try and identify which 
one. Thanks

Ronnie  Ronnie Hamilton 

Senior Network Engineer 

Lufthansa Technik Airmotive Ireland

IT Department
Naas Road, Rathcoole

Co. Dublin, Ireland
Phone: +353 1 401 1253 

E-mail: ronnie.hamilton@xxxxxxx 

   Visit our website : www.ltai.ie __________________________________________

Lufthansa Technik Airmotive Ireland Limited. Registered in Ireland. Reg. No. 
45999. Registered Office: Naas Road, Rathcoole, Co.Dublin.

Lufthansa Technik Airmotive Ireland Leasing Limited. Registered in Ireland. 
Reg. No. 140891. Registered Office: Naas Road, Rathcoole, Co.Dublin.

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