Ever since we patched our BDS to 1.19.31, we haven't been able to connect to the hosted game over the LAN. In debugging, we see that it connects to the server and then Wireshark shows malformed packets.
Things We've Tried
Spin up a new 1.19.31 world on the server: Ensuring we aren't trying to connect to a corrupted world file, so starting new - can't connect. We see the server as a joinable server under LAN games but get connection timeouts. From one client, we tried connecting under the Add Server option and that also got connection timeouts.
Intentional wrong server version on the LAN: can get the error of an outdated version, so no problems communicating there
Connecting from our clients to another player's shared game (over the Internet, non-LAN, non-BDS) with a 1.19.31 client: Works fine, so looks like it's isolated to BDS.
Linked issues
Comments 2
Thank you for your report!
We're tracking this issue in BDS-17307, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 BDS Wiki – 📖 FAQs
After further investigation, this looks like an issue with Hyper-V and Linux VMs. The comment from Valiante on this issue got us back up and running: BDS-17307 Unable to connect to VM-hosted BDS on same machine - Jira (mojang.com)