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Rarely, yet annoyingly, I cannot access my websites with my laptop.

If I try to open one of them in a browser, I get the classic "This webpage is not available" error.

When I try to ping one of them, the following happens:

ping domain.ext

Pinging domain.ext [server.ip.address.here] with 32 bytes of data:
General failure.
General failure.
General failure.
General failure.

Pinging the IP address does not solve anything (DNS works by the way). Changing the domain to another one pointing to my server does not change anything. Flushing DNS does not change anything.

I can ping other websites, I can ping my computer as well.

C:\Windows\System32\Drivers\etc\hosts is at default settings.

All other websites of the world work. Only mine present these issues.

If I try to browse my websites with my smartphone, connected to the same network, everything works.

This happens on different networks (home, work, friends, ..). A reboot usually fixes the issue.

I came to the conclusion that it is related to my laptop. It is a Thinkpad W530 running Windows 8 Pro x64.

The firewall is Windows built in firewall with default rules. Antivirus is Windows Defender.

What could it be the issue? And why would it happen only with a single IP address? Especially, why the one of my websites?

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1 Answer 1

I thinks this is caused by a some kind of malware.

In one computer I have the same problem. After a period, no network access was possible, until next reboot. It's build-in feature of Microsoft Windows too let a program, decide what packet goes and what doesn't go (Independent of your firewall)

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Ok, but why are only my websites not working? Everything else works. And why does it work again after a reboot? –  dgraziotin Sep 14 '13 at 9:51
Hmm. No idea. Test with Wireshark that request to your website goes out from your computer. –  SuB Sep 14 '13 at 11:04

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