> 1. Why should it need to do this? I vaguely remember from the time (~10 years ago) is that this was a requirement for phones (eg, when Qt is used on a Nokia

> 1. Why should it need to do this? I vaguely remember from the time (~10 years ago) is that this was a requirement for phones (eg, when Qt is used on a Nokia phone) that the network request go to the interface preferred by the user (so not to use the cell network when wifi is available). Anyway, the whole thing was implemented in a "bearer manager" plugin, and that thing was quite buggy. https://doc.qt.io/qt-5/bearer-management.html https://doc.qt.io/qt-5/bearer-management.html I think apart from people running Qt on phone, this had virtually no use. And yet this was enabled by default on all platform, and causing lots of troubles. What we ended up doing for the application we were shipping was to make sure that this plugin was not included in the final package.