I have just switched to Comcast cable internet from AT&T Uverse and I was hoping to use the 2WIRE wireless router with the new Surfboard modem so I can have wireless access. I messed around with some settings and got it working for my laptop (I'm not terribly well versed in computer stuff; I think it was mostly luck) for about a week. The other day I tried to get online and there was no internet connection. I restarted the equipment with no success and then plugged the modem directly into the laptop. This worked, so I knew there was no outage. I connected the ethernet cord to the router and a second cord to my laptop and that worked, too. But when I tried again just with the wireless the laptop connects to the router, but doesn't recognize it or find an internet connection. I tried to go to http://gateway.2Wire.net to fiddle with the settings, but all I get is a Server Not Found page. I tried to check the ip address but this is really kind of over my head and I get different things checking it while plugged into only the modem vs when I plug into the router. Can anyone help? The frustrating thing is that I had it working for awhile, so I know it can do it!
first thing I would do is go to your Network and Sharing Center (Network Connections if older windows OS) and then go to Manage wireless networks. I would delete any profiles that relate to your network... which would cause a clean slate when you try to connect again. Try connecting wirelessly.
if this does not fix the problem you will have to connect to the router directly (wired). You said this does work, so go open a cmd prompt (RUN dialog and type "cmd")and then type >ipconfig. Please tell us your network information for both wired and when it is wireless. Post an image here.
The Default Gateway is the ip address of your router. Open a browser and put the default gateway address into the url address field. This will get your router admin web page...