Some people are experiencing problems logging-in, I can help with any kind of problems, I've had a chat with Lee and we've figured out a way to make it work but for now users are gonna have to fix the problem themselves since the problem isn't coming from the server itself, it's from you.

I've tested a couple of DNS manually but in the end using Google's DNS 8.8.8.8 and 8.8.4.4 as an alternate DNS is what's been working the most, adding to that a DNS flush and re-starting Minecraft you should be able to join Skyblock.net without any problems. We're not sure if it can fix everyone's issue but it could fix a bunch, i'll be on Discord if anyone needs help with that, my username's Akin, don't be scared to send me a message you can also send me one on the forums.

If you're not really comfortable doing all this. I'll check your ISP for you to see if it's not blocking the connection and i'll also set your DNS to the proper 8.8.8.8 & 8.8.4.4 and flush the DNS.

Do not hesitate to contact me.