Firmware on main unit not upgrading
Hello,
I was attempting to upgrade my deco m9 plus v2 from firmware 1.2.12 to 1.4.3 utilizing the upgrade tool. Everything seemed to run smoothly, but after complete I found that the 2 non-main units had the upgraded firmware, but the main unit still had 1.2.12. The network seems to be running ok but occassionally I see the warning on my iPhone that the network security is weak. My guess is that I get the message when the device is connected to the main unit. The whole reason I upgraded was to improve the security. How should I proceed to update the main unit?