I have a user that has the 4510L device.
First I had to back the mifi device down to G for wifi in order for his business laptop to connect at a decent speed. His personal laptop would get great speed already. He now gets fast speeds on his business laptop anywhere from 4Mbps to 10Mbps using speedtest.net.
Now for my issue we use Cisco's VPN Client (5.0.07.0290). When he connects to our VPN network his speed drops in a major way and did not do this when he was using his 3G mifi. Speeds are under 1Mbps and very very very slow and very hard for him to get any work done.
Does anyone have any suggestions to get this working better for him.