I wonder if you are asking why you can't get on the internet.
http://www.linksys.com/us/support-product?pid=01t80000003K7blAAC covers setup.
As to the old network name, I don't want to get into how Windows remembers that and how it will go away over time.
> when you connect in the new router, power off the cable model too. Wire it up, then boot cable modem, wait till the lights go stable and then the new router.
Now if the firewall is on in the router you might find yourself unable to ping LAN devices. THAT SETTING IS YOUR CHOICE. I've lost count of folk that turn it on or it arrives turned on and they complain.
I have successfully been using a Linksys E1200 router for several years. A friend recently offered me a used Linksys E4200 router as an upgrade. It worked fine for my friend as of a week or two ago.
I can't get the E4200 router working. I can ping the router and access the settings from my computer, but I can't get an IP address or ping anything past the router. I've done a hard reset, which takes me back to the setup page for the router settings. However, I also noticed that in Network and Sharing Center it shows the old network name (the name my friend had created) even after 10 hard resets.
I've switched back to my old router which works fine, so I know the issue is with the new E4200 router. I'm using the exact same Ethernet cables for both routers, just switching from one to the other.
I don't think the MAC address is an issue, but I've set both the old one and new one to clone my PC's MAC, and the old one works while the new one doesn't.
I updated the firmware of the new router, but it didn't work before or after updating.
I've run out of ideas, so I'd appreciate any help. Thanks!