Still having this issue. On 1.13 through 1.14.2. What's weird is that a year ago I was hosting a server on 1.12 and 1.13 and everything worked fine. (Same router, everything) Tried different PCs on the network and they all had the same issue: players ON the server's network connect fine. But players OUTSIDE the server's network would sometimes randomly get this error. Usually I could fit 1-3 players from outside the network on fine, but then any players after that would run into the error.
As for the "fix" in the image, I can't find a legitimate .jar launcher.'
Edit: should add I have already tried...
Factory resetting my router
Opened every firewall/port for minecraft and java in both Windows and my router
Tried 3rd party launchers
Reinstalled the game (even though all of my friends are having the same issue)
Trying different server files
Basically anything you can find on Google. Trust me I've tried everything...
Gavin Tryz
MC-2170
Low
Still having this issue. On 1.13 through 1.14.2. What's weird is that a year ago I was hosting a server on 1.12 and 1.13 and everything worked fine. (Same router, everything) Tried different PCs on the network and they all had the same issue: players ON the server's network connect fine. But players OUTSIDE the server's network would sometimes randomly get this error. Usually I could fit 1-3 players from outside the network on fine, but then any players after that would run into the error.
As for the "fix" in the image, I can't find a legitimate .jar launcher.'
Edit: should add I have already tried...