Firestick NO LONGER Connecting to Panoramic Wifi. Was told to PAY to have Complete Care to have it resolved!

My Amazon Firestick no longer sees my Panoramic 5ghz wifi network. Firestick is fine as it can see my neighbor's networks. I was able to find similar postings on the internet and the solution is to change the Wi-Fi band channel to channels between 149 to 165 or channels between 36 to 48. I searched the Cox Wifi app and cannot find the anywhere the settings to change the band channel.  Contacted COX support and was told I had to join Cox Complete Care for $10/month so they could help me. This is ridiculous and unacceptable that now I am paying for internet and cannot use my Firestick anymore until the band changes since it seems to be set by COX.