I have one router which broadcasts 2GHz and 5GHz on the same SSID with the same security settings. I also have a repeater which does exactly the same (2+5Ghz, same SSID as the router, and same security settings as the router). I have one visible entry in connman which merges all four of these wifis.
Connman always connects to the router, even when the signal of the repeater is much stronger. It would be great if connman would connect to the stronger wifi source.
I'm running ArchLinux with connman 1.37, WPA-supplicant 2.9, and kernel 4.19.98. Please let me know how I can provide more useful information about this issue.