Subject: Re: 2.6.27 seems to break something with DSL (fwd)

From: Jarek Poplawski <[email-masked]>
Date: Sat, 18 Oct 2008 23:11:05 +0200

Olon wrote, On 10/17/2008 10:11 PM:

> 
> Hi there,
> 
> I can confirm this issue.
> I'm using a westell dsl modem, and going from 2.6.26.5 to .27.  I found that I 
> couldn't connect to most websites either.
> This modem is in passthrough mode and not nat.

Could you try this?:
echo 0 > /proc/sys/net/ipv4/tcp_sack

It looks like it helped in a similar problem here:
http://bugzilla.kernel.org/show_bug.cgi?id=11721

Jarek P.