RUT956 Mobile ESM reject cause unknown

NETWORKING SOLUTIONS
1

I have a RUT956 that was purchased a month or so ago. It was setup and working with a o2 SIM. I carried out the latest firmware upgrade yesterday and since then I keep getting Mobile ESM reject cause unknown. I have tried rolling back the firmware version to RUT9M_R_00.07.11.3_WEBUI.bin but this makes no difference. I have tried entering the APN manually, again this makes no difference and also swapping the SIM to slot 2. Does anyone know what’s happened and how I can resolve the issue? Thanks.

3

Hello,

If I understand correctly, you have updated the device from firmware version 7.11.3 to 7.13.1, correct?

  1. Was the “Keep Settings” option selected during the update?
  2. Are you using the same SIM card after the update?
  3. Have you tried using this SIM card in different devices?
  4. Are you in the same location after updating the firmware, or have you moved?
  5. Could you also please let me know the internal modem firmware version on your device? You can find this in System → Firmware → Update firmware.

Best regards,

4

Thank you for the reply, please see below:
Not sure what the original firmware was, but it was updated to 7.13.1 and has subsequently been down graded to firmware version 7.11.3

  1. Yes, although since then I’ve carried out a reset to factory defaults
  2. The SIM card has been changed recently, although the new SIM card was working
  3. I’ve tried a known working SIM card in the RUT956 and this does the same
  4. The RUT956 was setup and working at location 1, it was transferred to location 2 and was working and the firmware upgrade was carried out at this location. I assume the mobile connection was still working at this location, but can’t be 100% sure. The RUT956 was then moved back to location 1 and it was at this location that the problem was discovered. The RUT956 will remain at this location until working again and will then move to location 3.
  5. Modem firmware is: EC25EUXGAR08A15M1G_20.200.20.200

Thanks

5

It’s now working again!! Although a signal was showing for SIM1, I swapped antennas and now it’s working. I can only assume that the original antenna is faulty??

6

Hello,

Good to hear that the issue is resolved!

There is a possibility that the antenna could be damaged.

Best regards,