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Endpoint Management Community Blog

DS client communication troubleshooting... part II

Created: 08 Dec 2009 • 2 comments
Ludovic Ferre's picture
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So I logged on the server a few minutes ago and checked the following:

  • Sessions in the eXpress database = 1222
  • Tcp sessions reported by "netstat" = 523
  • Tcp sessions reported by "netstats" on port 402 = 451
  • Tcp sessions reported by "netstats" as CLOSE_WAIT = 275

Which means the server only has 176 active tcp sessions (including the PXE and SQL connections) when the axengine (and thus the DS console) reports 1222 active computers.

Looking on the server Aclient (which as the same symptoms as all other machines - a white icon instead of the expected blue one) we find the following entry:


Which is documented on the AKB ( So, I need to see if the proposed steps there are applicable to this case.

I'll post updates directly on this entry later on!

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Ludovic Ferre's picture

 Okay, I was on the server again and after I set the axengine log setting to 7 (it was on 5) I could see the log rolling over between axengine.log and axengine2.log in 15~20 seconds only.

Looking into the events I found ~10,000 BadRequest messages from the DS. Going deeper I found these entries to come from only a few count of computers (I haven't accounted for all ip's but 4 of them amounted to 5,800 of the request -> just about 60%!).

Looking on one of these machines I could see the Aclient running there is listing 6.5.248 and we are running DS 6.9 SP3. So this constant hammering of request from 6.5 clients (averaging at 600 per seconds) is probably causing the socket issues and WSAECONNRESET errors.

I am currently off-net, on a retreat of some kind. I'll be back real soon, and you sure will hear from me then ;-).

Ludovic FERRÉ
Principal Remote Product Specialist

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Palvaran's picture

Thanks for the information Ludovic!  I knew it was important to keep the agents up to date, but I had no idea that not having them updated would cause such a severe performance hit.  That is great information to know!

Systems Administrator
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