Can you explain in more detail on what port to connect legitimately?
At the moment, all of my farm go to port 7007:
Worker   Hashrate   Difficulty
001   1,441.68   21750.23
002   988.20   13005.43
003   930.12   13698.45
004   899.57   13248.45
005   502.54   12433.91
006   381.98   9087.54
Does it make sense to change the port in my case?