Had one of my W21s go down after the software update bricked one of my routers.
received my replacement, and have been trying to add the second replacement w21 router as satellite.
unfortunately, the main router doesn't show in surfboard central. I only see the modem in the application, so it won’t let me add a satellite.
the main w21 router is blue and connected to the internet; just doesn’t show up in the Surfboard Central Application; therefore can’t add the satellite.
saw a similar post, but didn’t see the issue ever resolved.