I had an issue today where I wanted to use my L5 as a hotspot, and it was able to connect via the broadmobi modem chip + cellular, but then when I turned on WiFi hotspot mode and hosted a network for another device, that device could connect to the custom SSID just fine but after some seconds it appeared to stop having actual internet connectivity and could not ping a public server like google.com even though the L5 still could.
What would cause this? Shouldn’t the devices on the network have internet if the L5-as-a-router has internet?
And even after doing the above, I sometimes loose the mobile data connection, but way less frequent.
As a side note: Did you install network-manager-config-connectivity-pureos? When you have this installed, a symbol will be shown when you loose internet connectivity. Personally, I think that this package should be installed by default, because it gives at least feedback to the user that there is an issue with internet connectivity.