[please always CC the bug report] Am 31.01.20 um 19:33 schrieb Jürgen Bausa: > Am Donnerstag, 30. Januar 2020, 22:32:13 CET schrieben Sie: >> >> I'm interested if this is actually a matter of how long the name is. >> Could you start with "usb-wlan" and add characters to that bit by bit to >> see when it starts failing? >> > > Ok. Tried this. Connection can be established with 14 characters > ("ab345678901234") but not with 15 ("ab3456789012345"). Unfortunately, > the predictable device name has exactly 15 chracters. > > I then tried to start the connection via /etc/network/interfaces. This works > even for the 15 character device name. Therefore I think the problem is > really > connected to nm.
Could you get a verbose debug log from NetworkManager. https://wiki.gnome.org/Projects/NetworkManager/Debugging has some hints how to do that
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