I said it could happen sometimes not all the time, it could've still disconnected him as soon as he joined.
I went to speedtest.net and did a ping test while on skyblock, and it said 20 ms. When I did /ping in-game, it said 742 ms.
wait wait wait, any antivirus you have on there wouldn't show up there.. Can you post a picture of your program files (x86) folder? Or whatever the equivalent is on MacOS. It's in the file explorer > ThisPC > Windows:C > ProgramFiles (x86). Basically I want to see your apps folder. Use this link for reference if you want Where are the program files located? | MacRumors Forums
this has been happening to me too?... i have to re log and turn my antivirus software off and then it doesn't time me out for a good 20 minute...
it could be a port block, if you join servers to often, your isp might put a port blocking rule. you just have to fix that in your router settings
I did that, and it still didn't work. I even tried two other application types (DirectX and IRC). What will they do though?