I have a website I built. If most people call it it does not time out for 30 minutes. In the web.config I have the time out for 30 minutes.
I have a customer using a computer inside their company, when they call my website it timeout in 5 minutes.
I ran tests on 3 different machines. two inside my company and on on my personal computer. I tested the page at 5,10,15 and 20 minutes and it did not time out
I tested it on FF and IE with the same results. I have know idea, when the customer runs the website inside their companies network it times out at 5 minutes
our website is an asp.net page and resides on a windows server. I have tested other website on my server and they do not time out at 5 minutes.
the website is using a jquery autocomplete and when you type in after 5 minutes in the customer's network you get a login screen. This is how I know it is timeing out