I had indeed used the same SSID on the Archer C5 and the Archer C50 -- one common SSID for 2.4 Ghz and a second common SSID for 5 Ghz. I just went and changed them, so now I have four different...

Model : RE305 Hardware Version : Firmware Version : 2017-12-18 ISP : Comcast Hello all - my setup includes: [*]Archer C5 as main router -- connected to modem via WAN port and both 2.4 Ghz and 5 Ghz...