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.NET Forum / .NET Framework / Distributed Applications / July 2006

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100 second delay loading .Net no-touch app?

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dj - 28 Jun 2006 21:25 GMT
We have a single laptop here that has a consistent delay in loading
multiple .Net applications off of multiple IIS servers via URL access.
It does not matter whether the .Net apps are being launched for the
first time or subsequent times: each request for the application takes
almost exactly 100 seconds to bring up the form (like perhaps a timeout
has expired). Other similar clients on the same network bring up the
form in 15 seconds or less. Our no-touch apps generally consist of a
.exe and one or more associated DLL's.

It doesn't matter whether the server is XP or 2003. All servers and the
client laptop are running .Net 1.1 SP1. The laptop is a development
machine running XP SP2. I've looked at the server logs and the GET
request patterns are similar between this client laptop and other
clients successfully accessing the app. I've tried adding a .config
file for the app with <codebase> restrictions with no luck. Definitely
feel as though it's a client issue.

This has been happening for some time and would appreciate any ideas at
all on solving it.

dj
Systems Associates, Inc.
Kim Greenlee - 13 Jul 2006 02:30 GMT
It sounds like “something” is different about the laptop with the delay.  One
thing you might want to try is to actually look at the packet traffic from
that machine.  There are several free software packages you could use and
WildPackets has made OmniPeek Personal free.  You can get that here:  
http://www.omnipeek.com/.  What you want to look at is what the packet
traffic looks like without any network software loaded, i.e. Internet
Explore, IM software, Groove, etc... You may have a virus, worm, or rootkit
running on that machine which can cause this type of slow down.  

Once you’ve made sure that nothing is going out or in that you don’t expect,
you could try moving the laptop to another network connection that you know
works fine.  This would be a quick way to eliminate possible problems with
your network hardware.  

Other than that, I would look at the GAC, maybe you need to clean that up a
little.  Maybe play around with a dependency walker to make sure that
dependencies are where you expect them to be.

Good luck,

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digipede - Many legs make light work.
Grid computing for the real world.
http://www.digipede.net
http://krgreenlee.blogspot.net


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