The modem can not connect on LTE

What I tried:

1. Firmware me, that's the ones I've tried
SWI9200x_03.00.08.02
SWI9200x_03.05.23.02
SWI9200X_03.05.29.03
2. Changed operators
3. Changed the antenna
4. change the mode dip qmi

Screenshot of the problem, as well as attaching a file supout.rif.

In support of addressing, said that the pit is not supported. So I dip in and it does not work mode.

Please tell me what can be done?


There is also a modem QUECTEL EС 20 also could not make it work, I just have not tried. A sierra mc 7700 microns gained, obtained from 3 applications modems is only one .... How else would make 7710 work.

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Have you tried disabling LTE and using PPP to see if you can connect to the modem that way?

Via the supported hardware list: http://wiki.mikrotik.com/wiki/Supported_Hardware

Sierra Wireless MC7710/MC7700 [97] v5.25 and v6.0
If modem uses firmware 3.5 it should be upgraded to 3.5.23.2 firmware release in order to work in RouterOS correctly again.

Try upgrading to a newer firmware than 3.0?