We have a php script that contacts google and checks user status. The problem is it fails periododicly on average fails 5 times out of 5000 users. The times it fails is spratic.The machine it runs on is behind an f5 load balancer. When we run the program on a server that is not behind the load balancer we get no errors. I have run tcpdumps on the f5 and each machine involved but find nothing unusual. there was a tcp dup ack but i don't think thats all that unusual. Sence this is an ssl connection I can't tell exactly what the set of packets are that are causing the error. I'm at a loss as to what to check from here. I was hoping someone would have some ideas on what to check.