OK I have a ASA 5510 on a new network and it is doing PAT for all my connections to the internet. I have an ISA 2004 with service pac 1 2003 running as the firewall in front of my Mail server - All my remote users are usingpublic IP to connect to the Mail server via OWA and RPC over HTTP - they can get connected and stay connected for a short amount of time and then we have to clear the connection on the ISA for them to reconnect - this only works for a short time and I have to clear the ISA again for them to reconnect.PLEASE HELP- we are in desperate need of getting this resolved ASAP