TCP connections on Cisco ASA disconnects the database session every 30 Minutes

Right after a firmware upgrade form 8.4.2 to 8.4.7 on our ASA 5540:
the database app that makes a tcp connection with the database loses connection to the database servers on the inside of the firewall
-Nothing changed on the process servers.
-Nothing but firmware version changed on the firewalls.
-Rebooting did not help.
-Connections don't always drop every 30 minutes, but it's still almost exactly at that time, with a 90% chance of it happening. And it reestablishes in about 52 second
-The client is not willingly terminating the connections to the database servers on the inside. The connection is just going away.

I am not seeing any error in the logs in ASA but in our client we see:
Latest from PROD (times are in UTC):
Sun Apr 13 10:22:10 2014 - ERR: Read from the server failed (err[36],sev[78],state[0],line[0],server[],proc[],sql[exec sp_events_insupd :p1,:p2,:p3,:p4,:p5,:p6,:p7,:p8,:p9,:p10,:p11,:p12,:p13,:p14,:p15,:p16,:p17],err_type[client])
Sun Apr 13 11:47:09 2014 - ERR: Read from the server failed (err[36],sev[78],state[0],line[0],server[],proc[],sql[exec sp_events_insupd :p1,:p2,:p3,:p4,:p5,:p6,:p7,:p8,:p9,:p10,:p11,:p12,:p13,:p14,:p15,:p16,:p17],err_type[client])

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