Help! My computer can't use internet, the rest of the network is fine

  white_worm 17:04 27 Jun 14
Locked

I've got a big problem and am desperate for a solution. My computer went offline today and I can't seem to get it back on, no matter what I try. The odd thing is, everything else in my network seems to be ok.

Here's the network setup:

Cable -> Modem (Comcast Xfinity Ubee, can't find the model number) -> Router (Netgear WNDR4500) -> 24 port Switch (trendnet) -> computers

Earlier today I restarted my computer and when it came back on, I had no internet. This sometimes happens when I have my Nvidia Shield plugged in though ethernet, so I unplugged the Shield, reset the network, and came back. My computer still isn't able to connect to the internet. But everything else on the network has no problems, both wired and wireless.

The very odd part is that I seem to have some internet. Just nothing usable. I have a network monitor widget that says I'm online. It gives me my internal and external IP address and it looks normal. It even shows outgoing and incoming activity. My windows Network and Sharing Center shows me as online. And even Windows Update seems to have an internet connection (along with the device manager "search for drivers" function). But when I open any webpage in Chrome or Opera, it tells me I have no internet connection. My Adobe CC, Origin, Google Drive, and all other web services say I have no internet. Steam won't even open.

I can ping an outside connection, such as google, yahoo or 8.8.8.8, and I can ping my router. But browsers and other programs have no connection. Chrome says "no internet connection" when I try to go to an external site, but it says "not available" when I try to plug in my routers IP address.

Ive tried the following with no change: -Switching my IP from static to dynamic -Releasing/renewing my IP from ipconfig -uninstalling/reinstalling my NIC -Plugging in my computer directly to the router -plugging in my computer directly to the modem -using a Pluggable USB to ethernet adapter -rebooting in safe mode with network

I work from home so every hour I don't have internet is money lost. I need to get back online ASAP. I would run out and buy another NIC adapter but if the USB one isn't working I have no reason to think that another NIC would solve it. My current NIC is on my motherboard, a Gigabyte z77x-udh3. When I plug in an ethernet cable to that NIC the lights come on, but they're both orange. I'm not sure if thats normal for that mobo, I've never really paid attention.

Any help at all? Like I said, I'm desperate! Thanks

  Ian in Northampton 17:24 27 Jun 14

Have you checked with your ISP? It sounds like a DNS server failure at their end. But then, you say you've got other that devices that do have Internet connectivity. Hmmm...

  white_worm 17:31 27 Jun 14

Yea, everything else in the network is totally fine. I'm actually posting from my wife's computer while watching Netflix on my PS4. I even changed my DNS in my router to Google's PlublicDNS.

Any other ideas?

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