I have a PB that has been set up in AP mode. I decided I wanted to change the password to something more secure so I went to wifi settings. It defaults to connecting to a network and gives SSID and PW fields. I use the dropdown to change to AP mode, and the SSID and PW fields stay unchanged, understandably. I put the original SSID in that field and the new password in it’s field and say go. After a few seconds it tells me it “could not connect to that network”. It seems that changing to AP mode does not update the form submit functionality.
I was able to change the PW by restarting in Wifi setup mode, but intuitively it seemed the first way should have worked.