Your workplace should help you with this by providing software like http://www.netswitcher.com and fixing your internet access.
It could be company policy that internet access is not allowed?
Bob
I have a laptop which I use for work and play. I have the same ISP at work and home. But when I set up my internal IP for work, I can't connect to the internet at home without reconfiguring my IP. I've tried to set up at home to get on the net but when I get to work I can see the wireless but I can't get on the internet. Please help

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic