I'm still having issue with this, and have been doing some research, this may help others with similar issues. Here is what I have found so far, according to here:
Signal strength of wifi (RSSI) needs to be -67 or more for Video, RSSI less than -80 is not good, unusable.
TV was turned on around 18:30, Netflix film started around 21:05, but poor quality, TV on wrong (furthest disc)
Looking at logs the when the TV is turned on it associates with furtherest disc I see, it connects with RSSI -85, so that is unusable:
15.05.2019 18:39:39 [2 4 2] IF[5G]:STA(20:3D:BD:85:D1:8C) had associated successfully,rssi is -85
Then I pause Netflix, block the TV device in the BT Whole Home App for a few seconds:
15.05.2019 21:05:42 [4 4 1] IF[5G]:STA(20:3d:bd:85:d1:8c) blacklisted in MAC filter list
Then I unblock the TV in the App, and it associates with the nearest disc, gets a very good signal strength, and I can watch HD/4K fine:
15.05.2019 21:06:15 [2 4 2] IF[5G]:STA(20:3D:BD:85:D1:8C) had associated successfully,rssi is -42
Is there some way to configure whole home wifi to make the TV 'stick' to closest disc, maybe a hidden SSID for each disc? There is no need for the TV to associate with any other disc, neither the TV or disc is moving, they are both static, so I would like to make the connection static.