DSL fix - Internet works for some sites but not for others
Problem: Here are some common sites that were not loading for some users:
www.msn.com,
www.mapquest.com, www.walmart.com,
www.microsoft.com,
www.calbears.com
Fix: need to set the MTU value to 1452. Here is how to do that for Windows
(98, XP). (Vista does not need this)
1) Click on the link below. This will download a program (ignore the warnings
to download it - its safe). Save it to your Desktop so you can find it when
done.
2) Double click the file you just downloaded to your desktop - TcpOptimizer.exe, to run
it. Warning: Do -not- change anything else other than the values provided or it
could cause system errors and only a reinstall would fix it. (We are not
responsible )
3) Follow the image below to guide you.

4) When you click Apply another box pops up. Click OK to do it. It will ask if
you want to Reboot, which means re-start your PC. Choose Yes/OK.
Your computer will shutdown and restart. Try something like
www.google.com first, then one of the
suspect sites ( www.msn.com ). Should be working now.
Cheers!