Parts of the internet keep on disappearing on me

[shimi]

On Sun, Jan 20, 2013 at 9:49 PM, Shachar Shemesh <shachar at shemesh.biz>wrote:

>  Hi all,
>
> I have a really strange problem. On one of the computers in my house,
> parts of the internet keep on disappearing. Sometimes half the internet is
> inaccessible, and sometimes it's just a couple of sites (google is a
> favorite for this problem).
>
> This is, most definitely, NOT a router or ISP problem. Other computers on
> the same network are working fine. A virtual machine connecting via a
> bridge on the same network is working fine (via NAT it does not).
>
> Bringing the interface down and back up does not help.
>
> Existing connections remain connected, without a problem.
>
> The only thing that restores connectivity is rebooting (!!)
>
> There is nothing out of the ordinary in the routing table.
>
> Ideas?
>
>
>
Does ping work when the internet is 'down'? If so, I would go for:

TCP Timestamps, TCP SYN Cookies, Selective ACKs, Window Scaling

try eliminating all of them ;)

-- Shimi
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