Can't connect to Brightspeed Fiber Calix GigaSpire BLAST u6.2 Router

SONOS app on Apple iPad

Brightspeed Fiber with GigaSpire BLAST u6.2 Router

I have used SONOS for years with both DSL and Spectrum cable. Today I had Brightspeed Fiber installed. The router has one SSID for both 2.4GHz and 5GHz.

Sonos products are not found on the network and of course will not connect.

Have tried …

• Disabling the 5GHz radio in order to make ONLY 2.4GHz available
• Disabling the router firewall entirely so there was no filtering of traffic in or traffic out

And assistance would be greatly appreciated. I’m all out of ideas to make SONOS work. Thank you !!!