In luci under software.
- Update your list (give a second).
- Under installed software you should see two packages: kmod-ath10k-ct and ath10k-firmware-qcaxxxx-ct; remember xxxx
remove both - Install kmod-ath10k (without -CT)
- Install ath10k-firmware-qcaxxxx (without -CT, xxxx should be equal as above)
- I'm not sure but i think a reboot would be in order.
Succes.....