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I need help. I'm not super tech savvy, but good enough. I've owned the WNDR3700 for about two months now and it's a great modem. But I've recently noticed that my wireless connections wont allow me to connect to the internet recently.

I have my main office PC wired to the WNDR3700 router. And now, ONLY when that PC is on the internet on my wireless connections are fine. Then when the PC is off or sleeping, the internet connection works temporarily then all of a sudden, I can't connect to the internet with my laptop, iphone, internet enabled TV ...etc. The wireless connection shows up fine in my devices, but unless my wired PC is on, my internet connection does not work at all.

I have a Ubee cable modem from Comcast. I'm not sure if that's the culprit. Please help!

I'm baffled. Any help on this would be greatly appreciated!

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Is the cable modem plugged into the PC or the router directly? – Randolph West Feb 3 '11 at 0:08
@Randolph. The cable modem is connected to the router directly. – Carl Feb 3 '11 at 0:16
On your laptop, if you type ipconfig /all at a command prompt, what's the result? Is there any difference when it's working/not working? – Chris Feb 3 '11 at 2:41
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There's a slim possibility that your computer has a static IP address and is set up to share your Internet connection.

I'd check that first, and make sure that the router is set up to give out DHCP addresses.

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