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I'm having some internet connection problem - some sites (thankfully superuser is included) work perfectly while others (like www.boardgamegeek.com or www.couchsurfing.com) do not work at all. The problem exists in 3 different browsers and does not appear in other computers in my network (Edimax wired router). Can you help solve the problem?

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Are you on a proxy? –  Sivvy Oct 20 '09 at 14:40
    
No, I am not using a proxy. –  Amir Rachum Oct 20 '09 at 14:55

3 Answers 3

up vote 1 down vote accepted

Boardgamegeek! haven't seen that in ages!... Anyway..

Not sure why it would be blocked, but the first thing to try is to take a look at your hosts file - c:\windows\system32\drivers\etc\hosts Do you see any entries other than localhost?

Just incase of bad caches, close all internet browsers and go to the command prompt, type the following to clear your DNS cache

ipconfig /flushdns

Next, I would check for firewall / antivirus settings and make sure that nothing is being blocked.

Lastly, if you are still having problems, double check your internet settings to see if you are going via a proxy server that may have been incorrectly set up.

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Your answer wasn't exactly it, but close- I had a wrong dns server in the connection settings. Thanks. –  Amir Rachum Oct 20 '09 at 14:55
    
Thanks, I will remember that for next time an issue like this comes up - I wonder why some were working and some were not :S –  William Hilsum Oct 20 '09 at 15:00
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I'd guess the inaccessible ones weren't covered by the primary DNS, so had to fall back to the incorrect secondary DNS? –  Phoshi Oct 20 '09 at 15:05
    
I suppose we can only really guess, but +1 as a reasonable explanation! –  William Hilsum Oct 20 '09 at 15:17

If you have the same issue for 3 different browsers, could your firewall be blocking something?

What firewall are you using? Is it configured to block sites based on content? (parental lock for example?)

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No firewall on my computer. The router firewall I didn't check, but since it doesn't happen on other computers, and I have not set any computer specific rules, I guess it's not to blame. –  Amir Rachum Oct 20 '09 at 14:52

While it seems that you fixed your issue, I had a similar issue previously on a work machine that wasn't fixed this way and forced me to re-install TCP/IP. For Windows, instructions and an automated solution can be found at Microsoft's Site. Maybe this answer will help others too.

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