wifi shows connected but no connection
HTC Thunderbolt, Verizon Wireless, bought 12/29/11 I have a netgear mr814 wireless router (802.11b I believe, it's old). When I connect to wifi my phone shows full signal,(settings/wireless & networks/wi-fi settings/my ssid) brings up; connection status-connected, speed-11Mbps, Channel-3, Signal Strength-excellent, Security-WEP, and shows my MAC address and IP address. My router shows the phone as one of the connected devices, I do have the latest firmware updates for the router installed. Tells me the radio is working, the router is working, however, every page/app I use says I have no connection. I use wi-fi at work, (N I believe), everything works like a dream. NO site has solutions for this that I've found. Next step is to upgrade router?... It should be backwords compatible though right?...