I'm struggling to find which of the 2.4 or 5. 0ghz connection my S6 Lite is connected to. On all of my other device's, regardless of android version, it's easy to check in the WiFi settings. Can anyone tell where it is?
I can't find it either but what I would suggest is change the SSID for the 5GHz band in your router settings, most will allow that. It's what I did with ours