Device names in Home Internet

@magenta8764569, my TMHI app does not have the issues you mention.  The “Devices” tab shows all my connected devices, either showing their name or the last four digits of their MAC address.  You might want to try using an app like Fing (in the Google Play store).  It will scan your network and show all your devices, with information for each device (like IP address, MAC addresas, vendor, etc).  It could the be of interest to you then compare that information with the information in the TMHI app.