I’ve had my RUTX50 since start of July and when it is at home, basically doing nothing, just being connected to 4G/5G it usually takes less than 24 hours and the router has lost the connection to the modem and the 3G/4G/5G LEDs are just flashing. I can connect thru WiFi and login to the admin, but the status page partly times out (the modem status). I can check system- and kernel logs, but the troubleshoot file can’t be generated.
Firmware is RUTX_R_00.07.04.5 with, what it says, the latest modem firmware.
If I power cycle the router it works fine again, so it’s not very likely a hardware issue.
My plan is to use the RUTX50 as secondary WAN when my broadband connection goes down, but currently it’s pretty useless. (I don’t think automatic reboots is a good solution in this case.)
I travelled Europe this summer with the router in my RV, and then the router worked fine, at least after upgrading to RUTX_R_00.07.04.5. “Uptime” was weeks. But when I came home again the problem started again.
In the RV I used a Poynting antenna, but at home the ones included with the router. Same SIM card is used, but when travelling used roaming, so other networks. But then I also constantly used the 4G/5G connection. At home it’s not actively used. Can the modem power down when inactive?
I don’t know where to start troubleshooting…
I tried to attach system.log and kernel.log but wasn’t allowed to, but kernel.log is basically a loop of:
[82630.418363] qmi_wwan 2-1:1.4 wwan0: register ‘qmi_wwan’ at usb-xhci-hcd.0.auto-1, WWAN/QMI device,
[82936.145289] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[82936.145422] option 2-1:1.0: device disconnected
[82936.153218] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[82936.156792] option 2-1:1.1: device disconnected
[82936.166365] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[82936.169232] option 2-1:1.2: device disconnected
[82936.177537] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[82936.181772] option 2-1:1.3: device disconnected
[82936.253884] qmi_wwan 2-1:1.4 wwan0: unregister ‘qmi_wwan’ usb-xhci-hcd.0.auto-1, WWAN/QMI device
[82936.557375] usb 2-1: reset SuperSpeed Gen 1 USB device number 35 using xhci-hcd
[82936.591055] option 2-1:1.0: GSM modem (1-port) converter detected
[82936.591432] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[82936.596710] option 2-1:1.1: GSM modem (1-port) converter detected
[82936.603188] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB3
[82936.609501] option 2-1:1.2: GSM modem (1-port) converter detected
[82936.616093] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB4
[82936.622256] option 2-1:1.3: GSM modem (1-port) converter detected
[82936.629014] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB5
[82936.652766] qmi_wwan 2-1:1.4: cdc-wdm0: USB WDM device
[82936.652994] QMI_WWAN: extending urb size to 31744
system.log is basically an endless list of:
Tue Sep 26 01:33:55 2023 daemon.info gsmd: [__write:1097] warning: [CMM] Write to
2-1 [2c7c:0800] modem failed: errno 5
Tue Sep 26 01:33:55 2023 daemon.info gsmd: [common_write_handle:193] warning: [CMM] Failed to send command (0/9 bytes transferred) to
2-1 [2c7c:0800] modem!