A company has approximately 30 employees, 20 of which work remotely. Whenever users remotely connect to the server using a VPN, their Internet connection works incredibly slowly. Broadband speed tests show that their connection speeds drop from approximately 2MB to less than dial up speed and their Internet IP address ( tested through IP Chicken ) changes from their local Internet Service provider to the head office Internet Provider. Upon disconnecting the VPN the Internet returns to normal.
Changing the primary DNS to a generic Internet DNS site does not help as it appears that the IP address allocated by the small business server, after the VPN connects, sets the primary and secondary DNS to the server, which overides any primary DNS setting on the server.
Apart from the very slow Internet connection, this issue also seems to be causing performance issues with the VPN.
How can this be resolved, so that only Exchange email and shared folder access work through the VPN ?