RB2011 and e3372 HiLink - interface is restarting.

RouterOS General
1

I have following problem. I connected e3372 to rb2011, configured dhcp client and nat interface out.
It’s working but LTE interface dissapear every few minutes/seconds from the list and modem is restarting.
What can be wrong?
I tried a few mikrotik firmare’s, also latest stable and testing.. the same.
Internet is working until e3372 restarts again, when I connect modem directly to laptop connection is stable.

Device name: E3372

My number: Unknown
Hardware version: CL2E3372HM
Software version: 22.328.62.00.143
Web UI version: 17.100.13.01.03
LAN MAC address: BA:AB:BE:34:00:00
WAN IP Address: undefined

2

In between I tried many RB sw versions. I modified also cable to put external power (I thought that RB gives too less power).
No effect.

I thought that USB port is not good to I soldered usb cable directly to PCB of RB - no way that there is any connection problem. - No effect.

When I plug modem into my laptop everything works stable, when I connect it to RB sometimes works 10-15 min, sometimes its blinking after few seconds - LTE interface disapear from list…