Hello! I have questions on the operation openwrt on the board wpj558. Probably ath9k driver not working with QCA8327 3x3 MIMO, as detected Wi-Fi devices, very low level signal. For some reason, the device has a very low sensitivity of the receiving tract. This problem exists on openwrt: CC 15.05, BB 14.07. The driver ath10k and the board of 802.11ac are working fine. What can I do?