I think this is the same issue I’ve seen. As of a June 2026 release of BDS I could not get any clients to connect to my local server, it having been successful in May. Eventually by trial and error I tracked it down to this LANBroadcast settings being 0 in my level.dat. I used a tool to modify it to 1 and suddenly clients could connect again.
No changes to server.properties allowed me to resolve this.
It is probable that this world was began life (a few years back) as a single player game (or has been used as a single player game at some point) which may explain it, but either way was a nightmare to track down as there is no helpful information logged that I could see.
CorrodedCoder
I think this is the same issue I’ve seen. As of a June 2026 release of BDS I could not get any clients to connect to my local server, it having been successful in May.
Eventually by trial and error I tracked it down to this
LANBroadcastsettings being0in mylevel.dat. I used a tool to modify it to1and suddenly clients could connect again.No changes to
server.propertiesallowed me to resolve this.It is probable that this world was began life (a few years back) as a single player game (or has been used as a single player game at some point) which may explain it, but either way was a nightmare to track down as there is no helpful information logged that I could see.