Netgear EX7500 repeated looses connection to Netgear router

I have two EX7500 extenders setup in mesh mode. They are both connected to the Nighthawk EX7800 router. One of the extenders keeps loosing and then reconnecting to the base causing connection problems to security cameras connected to the extender. Previous posts have indicated that this has been an ongoing problem for years. All devices have the latest firmware updates. When is this issue going to be fixed?