I have the new WRT300N. For the most part it works. I also have the WRT54G which works great, no issues. With the WRT300N any wired clients can access anything and everything ie. linksysinfo.org However, wireless clients can not access this site (linksysinfo.org or google.com). I can ping these websites from the wireless machine fine. I have tried reseting factory defaults. I have tried changing the MTU and many other things on linksys's support page. I even talked to their live chat support but they cannot think of anything. They gave me a number to call but I am going to wait until Monday so I can maybe get someone in the states. If I connect the wireless client to the router via ethernet cable, everything works. The laptops have built in wireless card.. one is a broadcom card the other is an intelpro. I am not sure what else to try to do but hopefully I can get some ideas here.