multi box program

So I usually use the program "Multibox" but I moved into a new apartment and now I can't seem to get it to work with this internet. Is there any other program that does the same thing as that? I want to control 2 comps with 1 mouse and keyboard, when I hover the mouse between the screens. I've tried finding some, but the only ones I could find are ones that only work while ingame.

If multibox won't work in the new house, none of the others will, either. Your problem indicates a firewall or networking change, not a problem with a specific piece of software.