WiFi Boosters now obsolete?

[wireless]

I recently moved and had Fibre setup at my new house. During the setup, the technician took my old Telus Gateway router and left a Boost-6 router in its place. Now, none of my WiFi Boosters from my previous setup (which was also Fibre at my old place) work anymore. They get a solid blue light, but do not create a WiFi signal or connect in the Telus Connect app. Have these been made obsolete to push WiFi Plus?

More... (https://forum.telus.com/t5/Internet-Home-Phone/WiFi-Boosters-now-obsolete/m-p/137299#M33808)