I have been trying to run The Sims 3 on my PC and have been getting the error message "Unable to connect to the EA download manager" when I try to update through The Sims 3 launcher. I am running Windows 7 Professional x64 with 16GB RAM, Intel 3.1GHz quad-cour i5 (i5-4440) on a ASUS Z-87 Deluxe.
My first thought was that the professional version of windows 7 had some extra security features that might be blocking the game. I disproved that by installing the game on a clean install of windows 7 professional on a different PC. That worked fine, so on my main PC I re-installed windows 7 professional and installed the sims 3 again and still no go.
My question is can hardware really make that kind of difference to the software environment and what would be a possible fix for this issue?