Microsoft VPN / RAS / Degraded bandwidth for clients using VPN
Posted on 2006-07-11
Okay, I have a user who noticed some bandwidth issues from anywhere he travels. I will paint the picture for you.
1. Server 2003 with RAS
2. Server is connected to Full T1
3. Client from home using MS VPN
4. Client is connected to Cable (10 meg down and 1 meg up)
When client does a speed test without VPN (from speakeasy site) the results are close to the given figures. When test is conducted with the VPN, the results are 7-800k Down and 400k Up. Same test at a hotel and same situtation.
I did the test from my home computer using the VPN and my results were in the range of my Cable speed. I don't understand what is going wrong on this user's laptop. The configuration of the VPN client were the same. I went through two firewalls where the user did not.
I did check the MTU on the laptop which is not set (default) per DrTCP. I just rebuilt the laptop last week.
I would appreciate all the help.