RBSXTR&R11e-LTE6 disconnects randomly

RouterOS General
1

RouterOS 6.47.10, software id = 1K7N-NETK

This is what I see after one or two days of operation:

[admin@router] /interface lte> info 0
         pin-status: ok
      functionality: tx and rx rf circuit disabled
       manufacturer: "MikroTik"
              model: "R11e-LTE6"
           revision: R11e-LTE6_V027
               imei: 3**************
               imsi: 2**************
               uicc: 8******************
  subscriber-number: OK

As you can see, pin status is correct. APN setting must be good, because I see this after I reboot the device:

           pin-status: ok
  registration-status: registered
        functionality: full
         manufacturer: "MikroTik"
                model: "R11e-LTE6"
             revision: R11e-LTE6_V027
     current-operator: 21630
                  lac: 1350
       current-cellid: 743940
               enb-id: 2906
            sector-id: 4
           phy-cellid: 3
    access-technology: Evolved 3G (LTE)
       session-uptime: 14m1s
               imei: 3**************
               imsi: 2**************
               uicc: 8******************
         primary-band: B3@20Mhz earfcn: 1500 phy-cellid: 3
                 rssi: -70dBm
                 rsrp: -106dBm
                 rsrq: -15.5dB
                 sinr: -5dB

But it only works for a while. After some time (usually about day, but this is random), it goes into “circuit disabled” mode.

Why? What is happening here?

2

R11e-LTE6_V027 is know as stable one.
Now we have v028 and v029 is prepared.

You can do upgrade to 028 first.
Next will be How to correctly diagnose & collect LTE logs for support to see what happends when you lost internet.
Those are first steps.

btw, rsrp: -106dBm & sinr: -5dB not give big hopes with good speed, maybe you can move it in better place ?

3

Upgraded to 028, now I need to wait until (if) it goes wrong again.

Yes, the signal is weak and connection speed is low. The device is inside a room. I’ll put it on a pole outside, but I won’t do it until it becomes stable.

But that is not my concern. It does not explain why the circuit becomes disabled.

4

V029 seems to be out.

No change log or something alike to be found.