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Hi everyone, In our office, I have set up an IPsec VPN using a preshared key via RRAS. At home, I have had Comcast for years, and everything has always worked fine. Last week, I activated service from Spartan-Net, and with Spartan-Net, I can't connect to the VPN if I'm behind my router. If I unplug my router from Spartan-Net and plug it back into Comcast, the VPN works fine. Now here's where it gets weird. If I plug my computer directly into Spartan-Net and bypass the router, the VPN also works! So basically, the only time the VPN doesn't work is if I'm behind the router, with Spartan-Net as my WAN source. How do I even begin to troubleshoot this? What could possibly cause such a specific problem? I'm not changing any router settings, just unplugging it from one ISP, restarting things, and plugging it into the other. I was initially going to open a ticket with Spartan_Net as I thought they might be doing some port blocking, but the direct connection test seems to have blown that theory. Any thoughts? Al Puzzuoli Information Technologist Michigan State University, Resource Center for Persons with Disabilities, 120 Bessey Hall East Lansing, MI 48824-1033 517-884-1915 http://www.rcpd.msu.edu