Resolving NetworkManager issues without removing it.

[sgtrock]

A common symptom of a clash between Network Manager on a Linux system is to see the following dialog box:

Error:Could not download news because there is no internet connection

The advice from Kovid has always been to uninstall Network Manager as the clash is between Network Manager not being aware of an existing interface managed through /etc/network/interfaces. These days, that advice is becoming somewhat problematic as Network Manager is becoming ubiquitous.

As it turns out, there is an easy fix. Instead of uninstalling Network Manager, simply change one line in /etc/NetworkManager/NetworkManager.conf from this:

[ifupdown]
managed=false

to this:

[ifupdown]
managed=true

That allows Network Manager to maintain awareness of the connection and report it as up to Calibre.