then
1.Open a command line window as an Administrator (ie. right click on All Programs > Accessories > Command Prompt Right click it and select Run as administrator) ...
2.Type the command netsh and wait for prompt
3.Type the command interface and wait for prompt
4.Type the command ipv4 and wait for prompt
5.Type the command set subinterface "Local Area Connection" mtu=1458 store=persistent
(Your network connection may be Local Area Connection #3 or something, so it has to match that in the parenthesis)
6. type exit
We had also changed in his network card properties under Control panel > device manager, find your network card and click on properties then see if you have a setting for jumbo pockets and enable. (this may not be necessary)
No need to use VPNs anymore

Let me know if that works for you guys. It totally has for one of my guys.
<S>
Edited by Fantastic Ergo, 15 May 2013 - 05:57 PM.