I updated two EAP773 and one EAP650 to two EAP787 and one EAP773 - same exact mounting positions as before.  

Originally, when I did the WLAN optimization - I would get a strong 80% WLAN experience score - since I changed out to the EAP787 and one EAP773 - is consistently went down to 62-69%

Now I updated my two EAP787s to firmware 1.1.5 from 1.1.3 - and the WLAN Optimization has even worsened (see graphic) - I'm averaging 50% 

Once again, all EAPs are mounted in the same positions for the last two years ?!?!?

I'm using Omada software controlled version 6.1.0.19