I use a Cisco IP Communicator (softphone) from my Win XP laptop. Connect first to my distant office via VPN, then start the IP Communicator. Works fine when I LAN connect to my WRT 300N. Won't work wireless. VPN connects fine; IP Communicator won't register. Internet browsing and other programs seem to work normally when connected wireless.
When I am away from home, I can connect and operate through hotspots & other wireless access points.
My wife has a similar experience when trying to use her laptop-attached web cam. Works fine when plugged into the WRT 300N but donesn't work when connected wireless.
Do I have to input the distant server's IP address into the WRT 300N to allow the connection?