R11e-lte6 carrier aggregation not working.

Hi,

I bought a lhg 4g kit but after around 6 months I switched the modem for the r11e-lte6 cause it has band 1 where I live it’s more available.

Upgraded everything to the last firmware, routeros to 7.6, modem v034, and routerboard as well.

Problem is Ca-band doesn’t work, and I know it can’t do 1+3 wich would be ideal in my area but it should do 1+1 or 3+3.
Is this a firmware issue or what am I missing?

How does it look if you would rotate modem in any direction? In my case problem is that SXT LTE6 and LHG LTE6 are switching connections constantly - both bands. When I’ll use Cell Lock on one stable band then it almost never pick up another band.