Okay, let me explain the situation here. I have private server for friends and events, everything worked fine until my connection decided to kick out my PC from the internet access. I couldn't use that connection for a several days so I had to use a sub-connection, the server already happened to be broken then but I thought it was because of the sub-connection. Using my main connection now, the server is still broken. I can connect to it with localhost and strangely even my external ip, but others can't. This is the error message they are getting. NOTE: The console doesn't mention a failed connection or some sort. This is what canyouseeme.org says: As I already mentioned before I can connect on it through my external ip and the custom ip I am using. This server slot uses the custom ip. So I have no clue what is happening right now, I already have googled for solution but none seemed to work for me. If you have any possible solutions, please share them with me. Thanks! EDIT: When it was offline I updated my server from 1.7 to 1.8 but that doesn't really have any affect on the connection or does it?