ChargePoint and Orbi

When looking at the ChargePoint documentation on line, it appears that:

•  the Flex works with both 2.4G and 5G WiFi, and
• the smartphone app communicates with the Flex charger using Bluetooth.

This leads me to think that the typical "2.4G issues" people encounter with a few products are not what's going on here.

https://www.chargepoint.com/en-ca/products/home/troubleshooting

It is strange that there is no error message.

There is one other setting that might be responsible (but I think not).  If Access Control has become enabled, it can block new devices from connecting:

I have found that technical support people vary. It might be worth making another call to ChargePoint to explain what is happening.  i.e. "the app shows the WiFi SSID.  I enter the password correctly. and then ... "nothing".  No error message.  Nothing."

p.s. The typical "2.4G issue" users encounter is when the smartphone app refuses to even proceed to connect to the device unless the smartphone is connected at 2.4G.  (using Bluetooth eliminates this problem).  In the newer Orbi's that cannot turn off broadcasting the SSID, the technique is to temporarily provide a 2.4G network with the same credentials, perform the setup, and then remove this network.  I have both an old WiFi router (Netgear R7000) and a new TP Link 2.4G access point (under $20 on Amazon).  I have also created a Hot Spot on my cell phone.  i.e. power off the home WiFi entirely, create a 2.4G Hot Spot with exactly the same SSID/password as the Orbi, use another device to perform the setup, and then restore the home network.  Once the device "knows" the SSID/password to the home WiFi system, there is "no problem."

Is it possible that the ChargePoint Flex cannot get a good WiFi signal because of where it is placed?  RBS30's are often located close to the floor and surrounded by furniture