Stop working after some time on Router
Hello,
I'm using modemmanager to get internet on a router with a LTE module and an appropriate sim card. I have a problem of frequent disconnection. It happens generally after 3h to 9h of activity. The interface go down and will not bring up on its own.
To reproduce the bug on my computer :
- just waiting until there is no internet connection
The symptoms are :
- no internet
- the command
mmcli -m 0
results inerror: couldn't find modem
- the situation keeps the above state if there is no manual intervention
To restablish normal situation, i do the following :
- executing
service modemmanager restart; sleep $enough_time; ifdown $internet_device; ifup $internet_device
- or rebooting the device because the above command is not always successful
My specs are :
- ZBT-826-T16 router
- Fibocom NL668_EU hardware mmcli_-m_0.txt
- OpenWrt 22.03.0 (Linux SATELLITE 5.10.138 #0 Sat Sep 3 02:55:34 2022 mips GNU/Linux) os-release.txt
- modemmanager 1.18.6-2
I have also installed :
- kmod-mii - 5.10.138-1
- kmod-usb2 - 5.10.138-1
- kmod-usb-net - 5.10.138-1
- kmod-usb-wdm - 5.10.138-1
- kmod-usb-net - 5.10.138-1
- kmod-usb-net-qmi-wwan - 5.10.138-1
- kmod-usb-net-cdc-mbim - 5.10.138-1
- kmod-usb-serial - 5.10.138-1
- kmod-usb-serial-option - 5.10.138-1
- kmod-usb-serial-wwan - 5.10.138-1
The problem also occurred with an older version :
- OpenWrt-21.02.3
- modemmanager 1.16.6
Here are the logs of :
- ModemManager debug modemmanager.log.bak.txt
- Manual intervention (through script) modemmanager_baby.log.bak.txt
I do not know why it happens.
Thank you for your help.
Edited by Alogani