I'm running into this issue between PC and our Xbox Series X. Played yesterday, logged in today, and could not see each other. This seems related to the Microsoft account used. If we use the same account, which we normally do, then it does not work. But if we use different accounts on either machine, then both ends can see the worlds on the LAN and can connect. Nothing here has changed in our setup. We have been playing like this for over a year on PC -> Xbox Series X, and successfully prior to that on PC -> Xbox One X. The Xbox always hosts the games too.
I'm running into this issue between PC and our Xbox Series X. Played yesterday, logged in today, and could not see each other. This seems related to the Microsoft account used. If we use the same account, which we normally do, then it does not work. But if we use different accounts on either machine, then both ends can see the worlds on the LAN and can connect. Nothing here has changed in our setup. We have been playing like this for over a year on PC -> Xbox Series X, and successfully prior to that on PC -> Xbox One X. The Xbox always hosts the games too.