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 From:  "Chris Buechler" <cbuechler at gmail dot com>
 Cc:  m0n0wall dash dev at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall-dev] Problems with 1.3a3
 Date:  Sat, 22 Apr 2006 15:45:10 -0400
On 4/22/06, Richard Harvey <richard at squarecows dot com> wrote:
>
> This is weird! Ever since moving to m0n0wall 1.3a3 I'm unable to access
> any MS site (hotmail, windows update, msn.net, messenger and
> www.microsoft.com)
>

Sounds like MSS clamping issues in ipfilter 4.x.  Production m0n0wall
versions have patches in place that fix this bug in ipfilter 3.x. 
This is similar to the types of reports when this was previously an
issue.

Dinesh would be the one to comment here, I'm not sure what patches he
did or didn't include.

You can test and see if that is the issue by dropping the MTU of a LAN
system to something like 1400 and seeing if the problems continue.

-Chris