I use a DLink USB dongle for Mobile Broadband and it has worked fine during the transitions F32->F33->F34 but not after upgrading to F35.
The system ‘sees’ the connection in the Network icon in the system tray, but clicking on it gives me ‘Activation of network connection failed’
Modem manager shows that the dongle has succesfully connected to the 4G cellular network, but I don’t see any sign of it with ‘ifconfig’.
nmcli dev
…gives this:
DEVICE TYPE STATE CONNECTION
eno1 ethernet connected Wired connection 1
virbr0 bridge connected (externally) virbr0
cdc-wdm0 gsm disconnected –
wlp0s20f3 wifi unavailable –
lo loopback unmanaged –
journalctl -xe NM_CONNECTION=69d7e42b-4e0c-4d5e-a6ab-d4fb488ae613 + NM_DEVICE=cdc-wdm0
…gives this:
Nov 09 20:59:04 localhost.localdomain NetworkManager[1051]: [1636487944.3748] device (cdc-wdm0): Activation: starting connection ‘Telia 3G’ (15b79229-fcd3-461a-85b0-6ea823580290)
Nov 09 20:59:04 localhost.localdomain NetworkManager[1051]: [1636487944.3753] device (cdc-wdm0): state change: disconnected → prepare (reason ‘none’, sys-iface-state: ‘managed’)
Nov 09 20:59:04 localhost.localdomain NetworkManager[1051]: [1636487944.3845] device (cdc-wdm0): state change: prepare → failed (reason ‘unknown’, sys-iface-state: ‘managed’)
Nov 09 20:59:04 localhost.localdomain NetworkManager[1051]: [1636487944.3849] device (cdc-wdm0): Activation: failed for connection ‘Telia 3G’
Nov 09 20:59:04 localhost.localdomain NetworkManager[1051]: [1636487944.3850] device (cdc-wdm0): state change: failed → disconnected (reason ‘none’, sys-iface-state: ‘managed’)
So some sort of problem with Network Manager it would seem, but I have no idea what to do about it.
Any help appreciated…
Hello @mikew02 ,
Welcome to the community discussion area. You may try the command nmcli connection show to get a listing of your connected network devices. You should see something like …
fedora~/.config$nmcli connection show 11/10/21-09:00:39
NAME UUID TYPE DEVICE
enp4s0 500695c1-4f5b-391f-9391-824e578aa8a0 ethernet enp4s0
TP-Link_6E40 a7503db5-02d5-416d-b6da-247bb00c95e3 wifi wlp3s0
Thanks for the welcome. I’ve been using Fedora since F26 and this is the first time I’ve been totally stumped. nmcli connection show gives this:
NAME UUID TYPE DEVICE
Wired connection 1 84838572-b20b-3f5d-92b5-28b8ec73b88d ethernet eno1
ComHemA92288 d8839ddd-4a26-4395-8d4f-04777d8e537d wifi wlp0s20f3
virbr0 771424b5-caa4-4fa4-9d32-38a00732768c bridge virbr0
Telia 3G 15b79229-fcd3-461a-85b0-6ea823580290 gsm –
Right now, I have wired ethernet, wifi and the broadband modem connected.
‘Mobile Broadband’ claims to be enabled in the network system tray, but I get an activation error if I click on ‘Telia 3G’.
The HW seems fine, but for info it’s a i5 Gen8 Intel NUC.
I have the exact same problem (just a different usb device I use) and I can’t seem to find any useful info about it. @mikew02, do you have some progress with your issue?
Well that means you have a connection, I was going to ask you to try nmcli d show to list more info about the devices. Maybe try it so we have some more about the connection anyway. But now that I think about it you could try nmcli connection up wifi. nmcli is the command line tool for NetworkManager.
I was hoping that this was a teething issue for F35 and would magically disappear with an update. Unfortunately not it seems.
I spent a fair bit of time with the Network Manager CLI, but there just isn’t enough useful information to diagnose the problem. The Network Manager GUI crashes if I try to edit the mobile broadband connection that way.
Anyway, I suspect a bug in however Network Manager communicates with the modem to set up a connection.