ISA On Win2K/SP4, firewall/SNAT client running Win2K/SP4 behind it. Client can browse the web, do FTP, whatever. Web proxy client stuff is off, IE uses the firewall client to browse the web. DNS is running on the ISA box as a forwarder only, all LAN systems use the ISA for DNS. I enabled (Microsoft) VPN on the client to connect to a Microsoft VPN server out on the internet. As soon as it activates, browsing and etc is slow on the client and the ISA server cannot browse the web. ISA server Event Log also shows this: " Server publishing rule [DNS Query Server] that maps 10.10.2.1:53 UDP to 18.104.22.168:53 for protocol [DNS Query Server] failed because the port on the external interface is being used by another application. The Firewall service failed to bind socket for the server on the firewall since another process is using the same port. Check for any other process using the same port and terminate if necessary. " " Server publishing rule [DNS Zone Transfer] that maps 10.10.2.1:53 TCP to 22.214.171.124:53 for protocol [DNS Zone Transfer Server] failed because the port on the external interface is being used by another application. The Firewall service failed to bind socket for the server on the firewall since another process is using the same port. Check for any other process using the same port and terminate if necessary. " 1. How do I get my VPN client to play nice and not take over the ISA?. 2. How can an internal client take over the firewall service, when it had a lock on that port initially? Thanks. NOTICE: This communication, including attachments, is information that is confidential and may be privileged. It constitutes non public information intended to be conveyed only to the designated recipient(s). If the reader or recipient of this communication is not the intended recipient, an employee or agent of the intended recipient who is responsible for delivering it to the intended recipient, or if you believe that you have received this communication in error, please notify the sender immediately by return email and promptly erase this email including attachments without reading or saving them in any manner. The unauthorized use, dissemination, distribution or reproduction of this email, including attachments, is prohibited and may be unlawful. Receipt by anyone other than the intended recipient(s) is not a waiver of confidentiality or privilege by the sender.