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Windows 7: Certain sites not loading on Win7 Ultimate x64 desktop

05 May 2014   #1

Windows 7 Ultimate x64
Certain sites not loading on Win7 Ultimate x64 desktop

I'm at the end of my troubleshooting rope with this one so any help would be appreciated.

A few days ago specific sites stopped working on my custom build Win7 Ultimate x64 desktop. Since building it nearly two years ago I have had zero browsing issues. I switched from ATT U-Verse to Comcast a few months ago and haven't had any issues until a few days ago. I have not had any hardware or software changes since before this started happening.

Two main troublesome sites ( and were my two (only two) auto-open tabs in Chrome. also will not connect. I believe there was a fourth but I can't recall what it was. The issue is browser agnostic as all three sites also will not open in IE. I can browse any other site without issue. All three sites connect without issue via my Android cell, iPad and Win7 Enterprise laptop (all connected on the same wireless network) so it is specifically my Win7 desktop.

I have a TP-Link TL-WDN4800 wirelessly connected to my Asus RT-AC66U router and then a basic Comcast modem. I updated the firmware and power cycled the router just today. The Asus configuration page shows "URL Filter" and "Parental control" turned off. I have power cycled the Comcast modem and also rebooted my computer a number of times. I do not have another wireless card to replace the TP-Link with and eliminate that but as far as I can tell it offers no functionality for blocking sites.

Today I have also done the following:


netsh winsock reset
netsh interface ip delete destinationcase

I have disabled Windows Firewall, the Asus firewall and both at the same time and that did not help. Chrome is an allowed program in the Windows Firewall.

When I ping, and I get four repeated "General failure." entries. Interestingly enough, I can reach "".

Chrome gives the following error:

"Google Chrome is having trouble accessing the network.

This may be because your firewall or antivirus software wrongly thinks Google Chrome is an intruder on your computer and is blocking it from connecting to the Internet.
Allow Chrome to access the network in your firewall or antivirus settings.
If it is already listed as a program allowed to access the network, try removing it from the list and adding it again.

What could possibly be blocking specific sites on a specific machine?

My System SpecsSystem Spec
11 May 2014   #2
A Guy

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1

Welcome to Seven Forums kmmccorm. Thanks for listing your excellent troubleshooting attempts to date. Let's start with trying the trouble sites in Safe Mode with Networking.

Safe Mode

If they work there suggest trying a Clean start next

Troubleshoot Application Conflicts by Performing a Clean Startup

If no luck in either, do you have a system restore point from just before the problem began?

System Restore

You might also try connecting directly via ethernet to the modem as a test.

A Guy
My System SpecsSystem Spec

 Certain sites not loading on Win7 Ultimate x64 desktop

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