ADNM causes network performance hit

Hi,

I’m currently trying out Avast on a Windows 2000 server edition sever with 13 computers under it. The server has the ADNM and the Server edition of the managed client installed on it and the other computers have the standard managed client installed on them.

The problem occurs with a specific program, Sage Line50 v9.
With the ADNM and the managed clients installed and running, when the program try’s to access a large amount of data thats stored on the server there is a huge amount of traffic between the two machines cause the client to freeze up for a few minutes untill the data is transfered.
With the clients disabled the same thing happens.
With the clients uninstalled the same thing happens.
With both the clients and the ADNM uninstalled, when the program access’s the data there is a much smaller amount of data transfered and only a slight wait on the client end.

Looking at it using Ethereal there is over 170,000 packets transfered between the two machines with the ADNM installed, and with it uninstalled under 9,000 packets are send for the same operation after both sides have been restarted so there’s no caching of data happening at the client end.

This happens with on multiple computers using the same server, but only with this program.
This dosnt occur when the user is accessing the data if its on another machine with only the managed client on it.
It also occurs when the ADNM is uninstalled and only the unmanaged server edition is installed on the server.

It also occured between the server and the client when they where linked with a cross over cable, so it isnt a network fault either.

Any idea’s on what to try to solve this?

Hi Have you tried filetype exclusions on the clients and server? This mayhelp.

Regards

av-outsource.net

The Sage guys told me which file type needed to be excluded but it didnt make any difference.

Does pausing and/or stopping the Standard Shield (or another avast on-access provider) make any difference?

It’s somehow hard to believe that avast would be generating such a traffic just for fun, there has to be a cause for this…

Thanks
Vlk