i have a problem with usb modem & armbian on Rock64.
I have fresh image of Armbian 22.08 Jammy on my Rock64 hardware. I plugged in DWM-222 (D-link usb gsm modem), installed usb-modeswitch & modem-manager and i have created connection with modem-manager.
The connection was working successfully for one day, but then it lost connection. I made a restart and it was up again for few minutes. Then got down. Now i am unable to get it working at all.
I tried again total clean image with just the steps above, and it keeps reporting
netlink operation failed: netlink support not available
I couldn't find anything about this error on the internet. Power supply is proper one (3A) and DWM-222 is working normally on my Ubuntu desktop PC. This is full log:
Nov 16 20:17:45 rock64 NetworkManager[1630]: <warn> [1668626265.2333] modem-broadband[cdc-wdm0]: failed to connect modem: Couldn't reset interface before setting up data format: netlink operation failed: netlink support not available
Nov 16 20:17:45 rock64 NetworkManager[1630]: <info> [1668626265.2335] device (cdc-wdm0): state change: prepare -> failed (reason 'unknown', sys-iface-state: 'managed')
Nov 16 20:17:45 rock64 NetworkManager[1630]: <warn> [1668626265.2388] device (cdc-wdm0): Activation: failed for connection 'DLINK_modem'
Nov 16 20:17:45 rock64 NetworkManager[1630]: <info> [1668626265.2400] device (cdc-wdm0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Do you have any suggestions ? Thank you
