Can the LHG5 AC connect to an 802.11N accesspoint (RB912UAG-5HPnD) with 10 MHz bandwidth?
Or do I have to use the older LHG5 for that?
I checked on a hAP AC and it can be set to 10 MHz channel width.
I seem to remember that there was an issue with some AC chips and 10 MHz but it could have been UBNT and not MikroTik…
I don´t think so
First generation AC didn;t worked in 5/10mhz.
Yes I seem to remember such a thing. Don’t know if it was fixed in software or another way.
Anyway, I have ordered a LHG5 AC and it should arrive today so I can test it.
It does not work 
The 5 and 10 MHz channel width is shown but when it is programmed just like the other side (band=5ghz-a/n channel-width=10mhz) it says that the scan list is empty.
When a scan list is created with the correct channel in it, it says it is unsupported…
Is this something that is unimplemented in the software or is it a limitation of the IPQ4019 hardware?
It is unfortunate that this info is nowhere to be found before buying the product, I have searched all the data on the site but never found it.