Hi I purchased an hAP ac3 LTE CAT6 RouterOS v6.47. I have a couple of things to ask. 1) this support does not work https://help.mikrotik.com/servicedesk cannot register and is it a temporary problem? 2) My router is unable to show the 5Ghz network. I tried the factory reeset but the 5Ghz network is not visible. SSID is not hidden and works with A / N / AC protocol. 3) I tried this product in the hope of improving the state of the LTE network with the previous Tp-Lin MR600 product. Unfortunately I have a much lower range with the same bands and CA B07-> CAB03. I tried to select only the 7.3 bands in the LTE interface but I have the same worst performance. B7B3-> MR600 80Mbps / 160Mbps (B7B3) vs ac3 10Mbps / 40Mbps, any suggestions? 4) is there a way to scan the network to understand which best / stable band to hook? 5) Where can I configure the DHCP reservation service?
Thanks for the support!
This is not first post compare indoor MikrotTik LTE with other vendors.
hAP ac³ and wAP have bad internal antenna, try use external one .
I had the same issue with the service desk website, but I solved my problems without needing to bother them.
They’re probably looking into it.
When you use the 5GHz band with regulatory domain settings, the AP will perform DFS scans and then listen on the selected channel for radar signals.
This can take up to 10 minutes, depending on the regulatory domain and the frequency. Once that’s done, the AP will start running.
You can view this in WinBox by selecting the interface from the Wireless tab and looking at the bottom pane of the window to see the state of the wireless network, second one from the right.
Keep in mind that with regulatory domain settings, if it detects a radar on the same channel, it will back off the frequency and either wait for the radar signal to stop or change the AP frequency.
This can leave you without a 5GHz network if you’re in close proximity to a weather or military radar so do some planning and scanning beforehand.
Don’t forget that you may not see the network if your device doesn’t support the 5GHz frequency the AP is broadcasting on!
Check for interoperability with your devices. I know all mobile phone manufacturers have differing ideas on which 5GHz bands are allowed for WiFi use.
I recently deployed an LtAP LTE6 with the mANT LTE 5o antenna after switching out the internal antenna connectors for ACSMAUFL’s, and two SMASMA cables to the 5o.
The LtAP LTE6 now gets signal at:
RSSI: -70 dBm
RSRP: -98 dBm
RSRQ: -10.0 dB
SINR: 0 dB
2CA (B20@5MHz / B3@15MHz)
32/10 (DL/UL mbps)… behind 4 walls of 2 inch thick concrete (at the customers request). I was honestly shocked it even caught a signal.
The device I mention is different to yours but the LTE6 card is the same (and probably the internal LTE antenna too). The antenna makes all the difference.
Upgrade to the external antenna and locate your cell tower here.
Internal antennas are usually a panel that works best when aimed at LOS (line-of-sight) to the tower. They aren’t great but they work.
Do the same for the mANT 5o and you will have noticeably better reception when you aim it as best as you can, with or without LOS, towards the tower.
Some CA pairs have lower throughput than others. In my experience, reducing the band support for the card didn’t make a difference at all.
You can scan using:
/interface lte cell-monitor lte1
You can pick the band if you set Freq lock or Cell lock. You cannot pick the CA band. That is done automatically so YMMV.
Once you set either, you can test which variables work best, otherwise the LTE6 card goes for the best signal it can get.
If you experience very weak signal and or high interference (noise, SINR) intermittently, keep in mind that Freq lock or
Cell lock may result in your connection dropping completely or falling back to HSPA or even worse, GPRS.
You should check the wiki as they have everything there!
See here.
Read up, then read some more! 
I hope it all works out for you!