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 Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1971538 Title: My machine has Wi-Fi Hotspot broken after upgrade to 22.04 Status in network-manager package in Ubuntu: Confirmed Bug description: * Impact The hotspot feature fails to forward the data to the clients * Test case - log into an Ubuntu or GNOME session - connect the machine to an eth cable for internet - go to gnome-control-center -> wifi - enable the hotspot from the menu in the headerbar - connect another device to the wifi created -> the client should connect and access to internet work correctly Upon updating to 22.04, none of my machines can use the connection. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1971538/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
