@David-TP Found the fast roaming feature on the base AP. Wifi - 5Ghz: All 3 units are using channel 42, 2.4Ghz all on 6. I've run the network optimisation tool but it doesn't look like it's doing...

Couple of question with my new X20 3 pack running in access point mode: The fast roaming feature that is available with a single access point seams to disappear when you have the 3 access points...