Session sometimes timesout too quick

I am noticing session timeouts on my asp.net mvc web app randomly without browser being incative for for more than few minutes.

My understanding is the default timeout should be 20mins. But sometimes I get a timeout in couple minutes or even less than that. For example after browsing on the site for a while I might get a session timeout when i refresh a page very soon after I enter the page.

This is very random but I have seen this happen quite a few times now and I am not sure how I can trace this to see why I loose sessions every once in a while whithout browser being inactive long.

I checked my web.config an no timeout value is defined there so I assume it should be 20mins.

Hard to debug a开发者_开发百科s this does not occur regularly..

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1. There's an IIS setting for timeout. check it also

2. Maybe your application calls session abandon?

3. You can register session end handler to write to log on the server, to see exactly when this happens.

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IIS overrides your web.config. Go into IIS (this is for IIS 6) Right click your website, properties, asp.net tab. Click Edit Configurtation button on bottom, ASP.Net Configuration Settings, State Management, set your timeout here.

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Are you creating any files in the bin folder, that can also cause the application to restart.

There are a number of other causes too, try googling .....

causes for asp.net web application to restart

I got a couple of hits that list the possible causes.