I also have this problem on Ubuntu 24.04: No device can connect when the firewall is enabled, only if I disable it with 'ufw disable'.
See e.g. https://askubuntu.com/questions/1406149/cant-connect-to- ubuntu-22-04-hotspot ** Tags added: noble -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971538 Title: My machine has Wi-Fi Hotspot broken after upgrade to 22.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1971538/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs