https://bugs.kde.org/show_bug.cgi?id=411562

            Bug ID: 411562
           Summary: Bluetooth dun connection cannot be edited in plasma-nm
           Product: plasma-nm
           Version: 5.12.8
          Platform: openSUSE RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: editor
          Assignee: jgrul...@redhat.com
          Reporter: g...@linuxmail.org
  Target Milestone: ---

On openSUSE Leap 15.1, default Plasma 5.12.8LTS with Frameworks 5.55.0 and Qt
5.9.7.

>From within the Plasma Bluetooth module I linked to my phone and set up a dun
connection, which I subsequently got working. It then appears in the plasma-nm
connections editor, but when changing any option for that connection, the Apply
button remains greyed out. It is not possible to effect any change with the OK
button or by selecting another connection and receiving a prompt. If I OK the
dialog, when I return none of my changes have been saved.

The most troublesome effect of this is that the connection also automatically
assumes priority and keeps trying to connect every few minutes, regardless of
whether I already have another active and stable connection, and regardless of
whether bluetooth is activated on the device. This could result in data being
unknowingly transferred over my phone's bluetooth connection, with myriad
consequences, not least an unexpected huge phone bill! Since no firewall zone
has been selected or is indeed selectable when creating the connection, this
also opens up potential security issues.

I've been able to resolve the problem after editing the file relating to the
connection in /etc/NetworkManager/system-connections/ by adding these lines
under the [connection] section:
autoconnect=false
autoconnect-priority=-1
zone=external

and then rebooting (probably a restart command would have done the trick). But
other users could be unaware that this dun connection is poaching priority and
transferring their data, or indeed they may edit the connection, click OK and
think all is well.

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