Hey all. Did quite a bit of reading before I jumped up to the AX55 pro as the main router in my home. I would like to extend the network using my old AX21 via easymesh. I been at it for a few hours without luck. AX55 came online with no issues. Downloaded latest firmware for both units. Factory reset the AX21 and followed instructions for one mesh. Tried who's method and manual addition via tplinkwifi.net. 
 

WPS never picked up the AX21 and I can't discover the unit on tplink.wifi.net. 
 

Any help or ideas to try? 
 

thank you!