We are trialling dropping the HDMI EDID to Version 1.4, from 2.0.
Boards that can not change this setting manually in their settings page will require a converted provided by Promethean.
Testing continues!
In contact with Promethean for this exact issue. Likewise, nothing produced so far by their support team has been of any use.
Dan, a Sr. Coordinator, has requested a remote access session with an affected board. Will update once I know more.
Experienced this at a previous workplace running UniFi AP's (AC-PROs). They were working on a firmware fix for wireless devices not working well with third party DHCP servers which caused the APIPA. As for wired devices, they were unaffected.