Bug 394364

Summary: Connection with higher priority is not activated
Product: [Plasma] plasma-nm Reporter: Petr Nehez <petr.nehez>
Component: generalAssignee: Jan Grulich <jgrulich>
Status: RESOLVED INTENTIONAL    
Severity: normal CC: jgrulich
Priority: NOR    
Version: 5.12.5   
Target Milestone: ---   
Platform: Manjaro   
OS: Linux   
Latest Commit: Version Fixed In:

Description Petr Nehez 2018-05-17 09:23:24 UTC 
I have 3 types of connection:
* LAN with priority p=10,
* WiFi with p=5,
* 4G/LTE with p=-1.

The active and working connection with the highest priority is not activated when it should be.

Example: 
1) There are no active connections.
2) I activate modem p=-1 and it is active and working.
3) Then I activate WiFi with p=5, the connection is established but it is not activated and the system is still using modem.

I am Manjaro KDE and in the past when I was on Kubuntu this was working fine...
Comment 1 Jan Grulich 2018-05-17 10:49:15 UTC 
The "priority" property you talking about is "autoconnect-priority", which means that it is taken into account when there are e.g. more available wireless networks at the moment and this helps to decide which should be activated. It has no effect on device priority. It's NetworkManager who decided which device should be the default one.
Comment 2 Petr Nehez 2018-05-17 12:19:58 UTC 
OK, I will try to use metric of each connection whether it helps.
It's just annoying that when I plug in a cable my LAN connection is not chosen as the default one and the system still uses modem.
Comment 3 Petr Nehez 2018-05-20 20:06:46 UTC 
@Jan Grulich 

Out of curiosity - do you know why a magic number of 20000 is being added into connection's metric?

https://unix.stackexchange.com/questions/444538/metric-on-connections-and-magic-20000-value-added