not a lot of information here. If this is the only server you have, does it also provide dns? dhcp? gateway/firewall? I would check the IP pool RAS is taking, also routes, proxy assignment. In a single server, all your network services need to work together, and sometimes services step on each others toes

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Is this an external VPN that’s connecting to the same external IP address that everyone is using to NAT on to the internet? My knowledge is a little shaky on this, so I’m willing to be proved wrong, but I imagine that causing an issue…

Yes this is a single server invironment that does DNS, DHCP I have a Lynksys Gateway Router that does DHCP replay pointed to the DHCP server. I have tried the lynksys vpn client… it links in but you still cannot access files or computers. I spoke with linksys and they are aware of the issue and reported several of thier routers have the same issue and they do not know why. They are investigating. So I need to move ahead and try to get the RAS working so that my local users can access internet and still allow VPN connections using Windows native VPN software.