Netgear EX6200 stops broadcasting

Purchased a Netgear EX6200 AC1200 9 months ago. I use it to extend both the 2.4GHz and 5GHz signals from my router. 

The issue is that the Netgear extender stops broadcasting the 2.4 GHz frequently. Everyday or two I need to re-set it through mywifiext.net. It stops broadcasting despite the router still broadcasting both the 5GHz and 2.4 GHz SSID. 

By turning the extender on and off or by re-setting it, this will usually fix the situation for a day or two. My router and extender broadcast different SSID names for both bands so I can tell when the 2.4GHz has stopped broadcasting, but the router still is. Have multiple devices that I try to connect so I know it is not an issue with just one not picking up the SSID.

All the firmware is up to date and I have completed a factory re-set. The factory re-set provided me with one weeks worth of broadcasting, until the 2.4 GHz would stop once again.

Any suggestions, please and thx