SonicWall Authentication Timeouts for particular Website

I have a Sonicwall PRO 2040 Enhanced.

Here is the history:
I just updated the firmware.
The trouble website is written in ASP and has a login box.
It never had an issue before we upgraded the firmware.
There is a persistant VPN from the Sonicwall to the Webserver(hosted outside)
Issue only for internal users. Outside network is fine.
Only 1-2 people login to the website at a given time(internally)

Issue:
I am having trouble "keeping" a logged in session. It will allow you to login to the website. Occassionally when you navigate through a few screens it will log you out.


We are seeing that when we renegotiate the VPN it will sometimes allow users to login to the asp site and stay logged in. But this is only occassional. Sometimes we will change a timeout setting and it will start working, so nothing is constant. It is very random.

The website has not changed at all and this happens on a variety of computer and logon credentials.

Thanks in advance.

Let me know if you need more info.


mancoiAsked:
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mancoiConnect With a Mentor Author Commented:
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mancoiAuthor Commented:
Please help.
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ccomleyCommented:
Since this appears to be an issue with new firmware I suggest you raise a fault call with MySonicwall.com - they're usually pretty hot on this sort of thing.

You *could* try increasing the TCP timeout on the SonicwalL BUT if you take this route you must NOT increase the default - the unit will soon run out of memory for unexpired sessions! Rather, create an EXPLICIT permit rule for JUST this website (even though it's already permitted by a more general rule), and then within the explicit rule, adjust the TCP timeout upwards.

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