Both Decos (in access point mode) connected th Xfinity XB8-T Gateway by Ethernet. Connections to their Web servers are both fine. But if my Pixel 9 Pro phone connects to the 2.4 and 5 GHz Deco network, I often get No Internet Access. The connection drops, reconnects, sometimes works, usually does not.

The 6GHz connection seems to work properly. It uses WPA3. The 2.4&5 GHz does not. How do I set the connection to use WPA3? Maybe this is the issue.