I can't replace connman with network manager if I can not connect to a network, and it is not just me, I have heard several people complain of connman being unable to connect to enterprise wifi, college wifis, etc. I undertstand that your desire is to create a Qt-centric iso, and I assure you I could not agree more with the sentiment, but connman has been an issue for a large number of people in my experience. Thank you for your response, but it seems my best in this case would simply be to install from a netinstall iso instead (which I was considering doing anyway so no major issue there)