I use to have a NetGear FVS338
I installed ASA 5505 two weeks ago.
This new firewall must have some timeout settings that the old NetGear didn't have.
I use Microsoft Reporting Services on my webserver that is behind this firewall.
I have a report that takes several minutes to run and now it timesout.
I have UDP 1026, TCP HTTP and HTTPS open.
I set the UDP timeout to 10 minutes in ASDM and this did not solve the issue.
It seems to timeout right at 2 minutes, so there must be a 2 minute default timeout set somewhere that I can't find.