MikroTik

I have the problem in my current setup that the 4G connection drops off a few times per day. This didn't use to happen when I had my ISP's ZTE modem as main device (but the upload speed was much worse). I am trying to understand the difference here between both modems. When I look at the status pages for both, this is what it shows:

ZTE modem (ZTE MF286d, seems to be 4G "cat12"):
LTE Frequency Band: 20.0MHz@1800(B3)+10.0MHz@DD800(B20)+15.0MHz@1800(B3)
CA Inactive

Mikrotik LTE kit6, running RouterOs 6.47.4 (stable):
Primary Band: B20@10Mhz earfcn: 6300 phy-cellid: 39
CA Band: B7@20Mhz earfcn: 3150 phy-cellid: 42

I see the ZTE connects to 3 bands but does not have CA. The Mikrotik has CA but only connects to one primary band.

Is that how it's supposed to be, or do I have something misconfigured?
Thanks already for the help!

I had SXT LTE6 doing the same but it was on a previous firmware. I've changed to SXT LTE4 at same location it stay connected on without any issue.
but I remember reading it here that this bug is fixed in the most recent firmware. Will see what others say.

KarelB

LTE Frequency Band: 20.0MHz@1800(B3)+10.0MHz@DD800(B20)+15.0MHz@1800(B3)
CA Inactive

It looks he connect few Bands as 3CA but he activate them when traffic happend, some lte devices and bts itself activate additional SCC when transfer exist.

Mikrotik LTE kit6, running RouterOs 6.47.4 (stable):
Primary Band: B20@10Mhz earfcn: 6300 phy-cellid: 39
CA Band: B7@20Mhz earfcn: 3150 phy-cellid: 42

CA connected = 2CA done, aggregation exist.

I see the ZTE connects to 3 bands but does not have CA. The Mikrotik has CA but only connects to one primary band.

PCC is a primary-band, that channel provide DATA + information about other aggregation SCC.
Few SCC can be connected, mikrotik show as CA-BAND but still when you have connected few bands = you have aggregation.
Many device can show few SCC but they can be inactive and active when BTS or Transfers happend.

Is that how it's supposed to be, or do I have something misconfigured?
Thanks already for the help!

SCC/2CA/CA-band is automatical. If you are in signal range then Tower can activate additional stream, your UE module can it's active and incative then your Tower say to remove it.