Keep in mind when shadowing is activated all caching, speedscreen and other optimizations are automatically disabled (since you cannot have these features active when two users are viewing the same session) Check the cache size of your local ICA client - if it is enabled and set to a percentage of the disk with a large HD - you may have a bitmap cache that has grown so large that it takes longer to read the cache than it would to just send the bitmap. Also make sure that your cache is pointed to a local disk not a network share. Try disabling all of the optimization features on the session and see if that helps. Eric We do...whatever it takes! <http://www.caretechsolutions.com> Eric M. Foote Chief Technical Architect CareTech Solutions, Inc. 901 Wilshire Drive, Suite 100 Troy, MI 48084 Eric.Foote@xxxxxxxxxxxxxxxxxxxxx tel: mobile: (248) 823-0914 (313) 657-1799 From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Jason Patten Sent: Tuesday, August 21, 2007 7:54 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Off the chart latency I have Latency checker and am going to be trying to use it a little bit to see what I can see. However I have to rely on what the user tells me, if I shadow the latency checker session, the latency immediately drops to the latency of y session here on the LAN. (Verified this using a laptop and dial-up connection at the office), where if I shadow my LAN session from the dial-up, the latency goes UP... Any idea why that happens? (CUstomers report that when we shadow them the latency seems to go away) Also, I just disabled the session reliability, lets see if that helps. On 8/21/07, Rick Mack <ulrich.mack@xxxxxxxxx> wrote: Hi Jason, The big change between XP and CPS 4 in terms of the ICA client is ICA V2 otherwise known as Session reliability. If your WAN has QOS set for ICA (port 1494) then ICA V2 on port 2598 is going to have a hard time. Try disabling session reliability on the servers and stand back ;-) regards, Rick www.commander.com On 8/21/07, Eric Foote <eric.foote@xxxxxxxxxxxxxxxxxxxxx > wrote: Grab a copy of Latency Checker from http://www.fcconsult.be/ <http://www.fcconsult.be/> and run it in your session that is having issues. Also you can look at ICA session latency from perfmon ICA Session object. Does the title bar of the ICA session show that Speedscreen is on? Eric From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Jason Patten Sent: Monday, August 20, 2007 2:53 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Off the chart latency We are dealing with some serious latency issues here as well. Ping times below 100, but keyboard response can be as much as 15-20 seconds behind the keystrokes. Its only occuring with a small handfull of clients. And they only started complaing of it once we moved from MFXP to Presentation server 4. On 8/20/07, Bernd Harzog <berndh@xxxxxxxxxxxxxx> wrote: Some suggestions: 1. Do you have anything that monitors at the ICA level? In other words, something that is measuring the response time of ICA over the WAN link? Ping is very low level, and it can be fine while things at the applications level are not. 2. If you are not, or cannot do ICA monitoring, try HTTP monitoring instead. Again, try to see if there is a problem at the applications level of the protocol. 3. Someone already said this, but I recently saw 30 echo delays in an ICA client (fat and thin) that turned out to be caused by VOIP traffic running over the same IP link as the ICA traffic Cheers, Bernd Harzog Vice President and General Manager ProactiveWatch www.proactivewatch.com <http://www.proactivewatch.com/> bharzog@xxxxxxxxxxxxxxxxxx 770-475-4249 -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On Behalf Of Stratton, Doug ISMC:EX Sent: Thursday, August 16, 2007 7:10 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] Off the chart latency T his is something I have not seen before. PROBLEM I have an office with 6 or 7 thin clients. (we have 1000's) Client is working then everything starts going extremely slow and eventually lost connection or more often what seems to be enormous KB/mouse delays (reflected by slow slow feedback to her screen what she types and what looks like to her erratic behaviour) I ping the tc and get constant 20-30 ms ping times. Does not look like "normal" latency problem. I check with smsconsole and the latency for the session is in the 10's of thousands. I have not seen this before where the latency thru that console does not also get reflected with pings. Saw a very odd part today. I was shadowing her and she started seeing this big delays while I was typing stuff. I was seeing everything real time. I am close to the servers. So I can only assume I am getting the echo real time and she is getting it way after. SMSconsole showed the 10's000 delays. Can someone explain and suggest possible problem/solution. Why I see low pings but Hi latency in smssconsole? Fellow worker says that is ICA latency. OUR ENVIRONMENT W2k3 sp2 Citrix PS 4 (upgraded from PS3 with 2005.04) R01/r02.0.1 Office 2003 sp2 Wyse TC s30 I am told there are no wireless components. Client site has a 1.344m T1? With much bigger bandwidth downstream? (30-100M) WHAT WE HAVE TRIED We have had the cables all changed, routers/switches all upgraded. TC replaced, I have put kb and mouse delay settings on the tc. (ICA performance settings) Regards, Doug Stratton, Shared Service BC Service Desk Email: 77000@xxxxxxxxx Service Desk Tel: (250)387-7000 -- Ulrich Mack www.commander.com