I'm trying to use the Cisco VPN client through our ISA Server. I've read the knowledgebase articles and have created the necessary protocol rule and packet filters, but I just cannot get out. I'm wondering where to start troubleshooting. When working with the Tech at the other site, and looking at our collective logs, he sends, but I never receive the final ack request, so the connection just hangs and times out. I have this same problem on all XP and Server 2003 machines with the Microsoft VPN client as well. However, all 2000 servers can get out with both clients. Any help in troubleshooting this issue would be greatly appreciated. Thanks. Mike Malter (415) 479-1968 Office (415) 309-4637 Mobile (415) 462-2941 FAX