Use MultiMC or Prism Launcher to connect - ensure you’re using Beta 1.7.3, not the release version. (Toggle the “betas” filter and select “b1.7.3” when creating your instance)
Once you are whitelisted, the server is accessible at oldschoolmc.live:25566
Whitelist application is here (After submitting, you should be whitelisted within 12-24 hours, if not sooner)
Rules are on the website
Connecting won’t work on the regular MC launcher, not sure what’s wrong if it still doesn’t work with MultiMC though…
There is a little bit of data I can look through, and we could also do testing later with the vanilla server to make sure it’s not a problem caused by Poseidon’s modifications.
Sorry you couldn’t join! We’ll get it figured out