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Solved
Ethernet not connecting
I have a WNDR3700. It's connected to a DSL modem for internet and port 1 is connected via cable to my desktop (using Windows 8.1). Recently, my HP 400 printer, which has always been connected wirel...
Babylon, this is a modem with wifi, but the wifi is turned off. I spent a large part of the day poking aroung on this. Seems like I ran into new symptoms about every half hour. Anyway, I stumbled across this post on Tech Support Forum (http://www.techsupportforum.com/forums/f31/solved-ethernet-does-not-have-a-valid-ip-configuration-911090.html), which had a link for Realtek PCIe GBE Family Controller driver updates, and that seemed to fix everything! Oddly, I'd checked for updated drivers using a link in the Windows help, and it had told me that I had the latest one.
PS - I tried this link, which is right off my browser, but it didn't work properly. However, if you go to techsupportforum.com and put 911090 in the search box, you should get it. Look for replys from OLD RICH, who has a Yoda on his posts.
It should be.. Did you confirm both ends of your ethenet cable between your desktop are fully connected? If yes, Did you try another port on the router? Or another ethernet cable? Your wifi will stay up until you disconnect your WIFI on your desktop, from the router...
Thanks for geting back. I've unplugged and replugged the cables several times. I hadn't tried a different port, but I did that without success. No luck with a new cable. When I disconnect the wifi connection and then troubleshoot, I get a message: "Ethernet" connection doesn't have a valid IP configuration.
Is your DSL modem in Bridged Mode, many DSL modems are also routers?
At the computer if you go to a Command Prompt and type ipconfig /all what IP data do you see for the Ethernet port, please copy and paste into a reply here.
Babylon, this is a modem with wifi, but the wifi is turned off. I spent a large part of the day poking aroung on this. Seems like I ran into new symptoms about every half hour. Anyway, I stumbled across this post on Tech Support Forum (http://www.techsupportforum.com/forums/f31/solved-ethernet-does-not-have-a-valid-ip-configuration-911090.html), which had a link for Realtek PCIe GBE Family Controller driver updates, and that seemed to fix everything! Oddly, I'd checked for updated drivers using a link in the Windows help, and it had told me that I had the latest one.
PS - I tried this link, which is right off my browser, but it didn't work properly. However, if you go to techsupportforum.com and put 911090 in the search box, you should get it. Look for replys from OLD RICH, who has a Yoda on his posts.
OK, good to see that your issue is resolved, however I would point out that a modem with WiFi is likely to be a router, and just disabling WiFI alone will not stop it operating as a router. This could lead to future issues e.g. Port Forwarding problems.
