We have two ASA 5510 devices. Both configured exactly the same. One is working, the other isn't. We plug ASA (2) in to the network and unplug ASA (1) and we can ping internally, and to our DMZ, but we can't browse to the web. We go back to ASA (1) and all is fine.
Any suggestions? NB: We are not using anything as fancy as Failover - just manually unplugging one and plugging the other one in.