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Windows 7: Some sites won't load on wired connection only

16 Aug 2012   #1

windows 7 Home Premium 64-bit
Some sites won't load on wired connection only

Having a very strange problem on a brand new desktop computer. When i use the wireless connection, everything is great. When i switch to a wired connection, some sites load fine but others won't at all. I have other desktops on the same wired connection and they have no problems whatsoever.
For example, i can get to Yahoo but not Yahoo Finance. I can get to Google, do a google search, but can't connect to the resulting sites. Can't get to ESPN, but Logmein works fine. Tried 2 different browsers (Chrome and IE) and same results.
I uninstalled all anti-virus software and disabled firewalls. Doesn't make any sense. I've never seen some sites connect and some won't, yet the wireless connection works for all sites.
I tried releasing and renewing the Ipconfig, and tried flushing the dns. I'm totally stumped and incredibly annoyed.

Any ideas?

My System SpecsSystem Spec

19 Aug 2012   #2

W7 Pro SP1 64bit

Welcome to the Seven Forums.

My guess is that you have too many tunnel adapters - that can cause DNS problems.

Tunnel adapters are specific to a network adapter - hence your problem with only wired connections.

Automating "6to4" Adapter Removal in Windows -
My System SpecsSystem Spec
20 Aug 2012   #3

windows 7 Home Premium 64-bit

Thank you for your response. There was only 1 6to4 adapter listed there. I uninstalled it. It didn't really help. I was able to get on yahoo finance right after that, but sites like ESPN and Twitter were still not loading. Then after a restart yahoo finance wouldnt load anymore. I checked back in those settings and there is no 6to4 adapter listed there. I'm back to square one again. Any other thought?
My System SpecsSystem Spec

21 Aug 2012   #4

W7 Pro SP1 64bit

if you connect via PPPoE, see if the MTU info in this thread helps
Issue opening websites, Facebook, MSN, Microsoft - IE9,FF10,Chrome
My System SpecsSystem Spec
21 Aug 2012   #5

windows 7 Home Premium 64-bit

Very strange turn of events. Connecting directly from the modem to the computer (bypassing the router) did not solve the problem. It stayed exactly the same. After that, since I was completely out of ideas I tried using a different router, and it worked. I have no explanation of why it works now, but I can now connect to all sites and everything is good. Very odd.
My System SpecsSystem Spec
21 Aug 2012   #6

W7 Pro SP1 64bit

Just out of curiosity, when you connected directly to the router...
...did you reboot the computer?
...did you cycle the power to the router?
...did you use the same LAN cable?

If you did not do those things, I'm not suggesting that you try those things now for fear that things could break again. I'm just scratching my head over this one.
My System SpecsSystem Spec
22 Aug 2012   #7

windows 7 Home Premium 64-bit

I did all those things. This is honestly the weirdest thing I ever saw. Is it possible that the old router wasn't compatible with windows 7 (the other machines on the network are XP)? I have no other ideas as to why this would happen.
My System SpecsSystem Spec
22 Aug 2012   #8

W7 Pro SP1 64bit

I'm not sure what makes a router Windows 7 compatible... never had any problems.
My System SpecsSystem Spec
22 Aug 2012   #9

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1

In searching, the issue of wireless working, and wired not came down to some specific routers and their firmware versions. It may not be the router you have, but it is certainly similar. A Guy
My System SpecsSystem Spec

 Some sites won't load on wired connection only

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