FOR PEOPLE WITH THE W[2003(Or 2007)] L[0] ERROR

I've seen a couple people making threads wondering how to fix the error that pops up when you try to patch the game. For some people, it says W[2003] L[0] and for me it said W[2007] L[0]. People keep on telling everyone with this problem to uninstall and reinstall the game, but I didn't need to. To fix the problem, all I had to do was disconnect my router and then reconnect it.... and believe me, that's a heck of a lot faster than uninstalling and reinstalling the game.