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    Mobile internet connection broken

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      • M Online
        ma
        last edited by

        I generally change the DNS server for the wifi connection using the nmcli command. I have now also tried this for the mobile internet connection. Unfortunately, the result is that I can no longer establish a mobile internet connection at all. Even a supposed reset with nmcli doesn't work. In the settings, an "L" for cellular data is displayed under "SIM 1", but this "L" is missing in the taskbar.

        I reinstalled the operating system with the Ubports installer, but unfortunately without success.

        Does anyone have any idea how to reset mobile internet settings? Thanks!

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        • G Offline
          gpatel-fr @ma
          last edited by

          @ma

          did you try the reset parameters function under Access point name in the cellular settings ?

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          • M Online
            ma
            last edited by

            Yes, I've tried this several times without success.

            Obviously the cellular connection settings (TYPE cdma) are not allowed to be changed using nmcli. The commands " nmcli c modify ... ipv4.dns "" " and " ipv4.ignore-auto-dns no " do not restore the default settings maybe because they have been deleted.

            Does anyone know where these settings are stored? Maybe I have a backup.

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            • D Offline
              domubpkm @ma
              last edited by

              @ma For testing: Did you go into airplane mode then reactivate? Have you turned off cellular data and then reactivated it?

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              • G Offline
                gpatel-fr @ma
                last edited by

                @ma

                did you try ipv4.method and ipv6.method ? on my phone these parameters are set to 'auto'.

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                • M Online
                  ma @gpatel-fr
                  last edited by

                  @gpatel-fr Yes, I did, but that doesn't help.

                  The problem may be because the "TYPE" has changed from "gsm" to "cdma" and the network setting is no longer recognized as a mobile internet connection.

                  As a test, I inserted the SIM card into the second slot and there was an internet connection with the same name. The TYPE is gsm.

                  I can't change the TYPE of the broken connection to gsm. And I don't know if it makes sense to delete the broken connection.

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                  • G Offline
                    gpatel-fr @ma
                    last edited by

                    @ma said in Mobile internet connection broken:

                    there was an internet connection with the same name

                    you mean that then you have 2 connections with the same name ? if you delete the bad connection, restart the phone, insert the Sim back in the first slot, then it should recreate it no ?

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                    • M Online
                      ma @gpatel-fr
                      last edited by ma

                      @gpatel-fr I assume so too. But I'm unsure if it's a good idea to delete the faulty connection. I'm afraid that this will affect the functioning connection.

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                      • M Online
                        ma @gpatel-fr
                        last edited by

                        @gpatel-fr Yes, there are two connections with the same name (web.vodafone.de).

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                        • G Offline
                          gpatel-fr @ma
                          last edited by

                          @ma said in Mobile internet connection broken:

                          I'm afraid that this will affect the functioning connection.

                          you can delete by uuid:

                          nmcli c del --help
                          Usage: nmcli connection delete { ARGUMENTS | help }
                          
                          ARGUMENTS := [id | uuid | path] <ID>, ...
                          
                          Delete connection profiles.
                          The profiles are identified by their name, UUID or D-Bus path.
                          
                          
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                          • M Online
                            ma @gpatel-fr
                            last edited by

                            @gpatel-fr Great! It works again. Thanks!

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                            • M Online
                              ma
                              last edited by

                              The takeaway is that you should not change the DNS server for the mobile internet connection using nmcli.

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