SP-4 kills network access

[joel]

No, I'm not running EZ-Trus Antivirus, Yahoo Messenger, or
InCD. I've got McAfee VirusScan Enterprise 7.0, and
Sysgate Personal Firewall 5.0.

The problem persists for me even if I exit my firewall &
virus scanner. In fact, I uninstalled my virus scanner
just to make sure.

It's a weird problem! It's odd that some pages load, but
most do not. And you're right, sometimes the pages that
DO load are incomplete. I sure hope SOMEBODY gets a line
on this one.

If I find anything out I'll let you know.

I'm going to try to "reset" my connection/modem and see
what happens.

 

[joel]

Holy crap, I found a fix that worked. A few different
posts have offered up this solution, which worked for me:

"I applied SP4 to a workstation running Win2000 Pro and
network performance just dropped through the floor - took
minutes to do even the simplest thing.

I've tracked it down to the registry key

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\
Parameters\Tcp1323Opts

I had to set this to 3 on this machine (to enable scaling
and timestamps) to solve an earlier problem but this
setting with SP4 just seems to grind things to a halt.

If I change it back to 0 (or remove it) then performance
is normal again (except my original problem - why I needed
timestamps in the first place - is back!).

Has anyone else seen problems with this registry key and
SP4?
Cheers,
Steve"

someone else said:

"Seems to be scaling that causes the problem, setting the
value to 0 or 2 is ok - 1 or 3 causes the problem... 0
(disable RFC 1323 options) 1 (window scale enabled only) 2
(timestamps enabled only) 3 (both options enabled)"

I changed the setting to zero (as opposed to removing it),
restarted, and voila!
Wow. I can't believe this worked. I wish I understood
it. Good Luck! And THANKS STEVE!

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