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Computer/Network Help

John am Rhein

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Can anyone suggest a quick-and-easy way to do the following?


I have a 3rd-party application (runs on .NET and uses MS SQL server) running and it's failing to connect to the internet in certain circumstances. What I think is happening is that the application is failing to use the correct proxy server settings (although it does this correctly most of the time) and consequently the requests it sends out aren't reaching our proxy server and, therefore, aren't getting sent out to their intended destinations on the internet.


The question is how can I confirm this assumption?


I'm thinking there must be some kind of way to start a trace of some kind to see what is being sent out via TCP/IP and, hopefully see that SOME of this is correctly directed to the proxy server and some of it isn't. But how would I do that? Some kind of 'packet sniffer' perhaps? Any suggestions?

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