You keep saying that you' re trying to provide good throughput to a file server; so what the hell is testing internet bandwidth gonna do for ya?
Here' s what I would do if I was you:
1) Get split tunneling working
-I didn' t have to do anything more than check off " split tunnel..." so contact fortigate support.
2) Test connectivity with iperf
Testing connectivity with iperf:
-Connect with the VPN
-Download iperf for windows: http://www.noc.ucf.edu/Tools/Iperf/iperf.exe
-run
iperf -s on the File server
-run
iperf -c [IP address of the file server] on the VPN client
-run it nine more times keeping the results handy
-average these ten results
-run
iperf -s on the VPN client
-run
iperf -c [IP address of the VPN client] on the file server
-run it nine more times keeping the results handy
-average these ten results
And you' ve tested the throughput to and from your file server.
" …you would also be running into the trap of looking for the answer to a question rather than a solution to a problem." - [link=http://blogs.msdn.com/b/oldnewthing/archive/2013/02/13/10393162.aspx]Raymond Chen[/link]