@Joseph-TP A week passed, and the AP didn't disconnect a single time. The beta firmware worked wonders. Thanks for everything

@Joseph-TP No, there's no switch between them Directly connected through a cat 5e

@Joseph-TP When the Access Point goes off I can only connect to main router and it will work I can't test the range extender since where I need the access point installed is pretty far from the main...

As title, the RE550 set as Access Point loses connection to router multiple times a day I updated to latest firmware, set wifi range to minimum to avoid CPU outage, DHCP disabled and LAN IP set...