QCA6174 doesn't connect to WIFI below standard ac in all distributions except Ubuntu

I use Manjaro as home distribution. I have 2 Wifi networks, one works on standard ac, other works on standard n.
My network controller is

Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)

I can connect to first WIFI (that works on standard ac) network using any OS: Windows, Manjaro, Kali, Ubuntu.
But for some reasons I can’t connect to WIFI that works on standard n using all Linux distributions except Ubuntu (18.04 if it matters). It asks for a password again and again and never connects.
I tried to install latest ath10k-firmware version and replace files QCA6174 to /lib/firmware/atk10k, but it didn’t help.
Hope for your help!
Thanks in advance!

Try setting the regulatory domain and see if it helps. It did for me with my Atheros QCA9377 awhile back when I was having issues with it.

Unfortunately, it didn’t help. By the way, wifi with standard n works on channel 9, which is included in all of domains.