AP55 - Sophos UTM 9 - signal range

Hi,

Question regarding the range on the AP55. 

I installed and configured the AP, syncing successfully to my UTM 9 install - 9.406 if I remember correctly. 

I can use the AP as required, but have a poor signal range. AP is in the kitchen, home office is 10 feet away, wireless signal drops to one bar, if not a complete disconnect. My AT&T wireless ( which is now off) had far greater signal and range in the house.

I have configured the Wireless Networks as separate - also, separate 2.4ghz and 5ghz channels for the required SSID's.

All Wireless Networks set to Auto (for channel)  - Speed 100% - 

Anyone seen / seeing this with the AP55?

Thanks..