Stop using windows sockets sir.
coding is not for everyone :s
uninstall windows sockets and you should be fine.
don't you all love the new anticheat? <3
The command you need to run is: netsh winsock reset
Go to Start -> Run -> type ācmdā>Right Click "cmd">Run as Administrator > type in : netsh winsock reset > hit enter
I found the problem to my own, It was from Pingzapper. All I had to do it was just refresh pingzapper close it completely then re-open it and try again. Then afterwords my MU started working.