EAP245 is not showing captive portal on Android
I set up an external captive portal on my EAP245. It is working correctly on iPhone, but on Android devices it is not popping up the captive portal. As a result; they are not verified by our Radius server, they do not have access to the internet. But there's no possibility to get access to internet too as the captive portal is not shown.
I tried it on two different Android devices.
My settings are (please let me know if other screenshots are needed to give an answer);
5GHz is the same as 2.4GHz.
IP and URLs are correctly set. I also tried enabling 'HTTPS redirect'.
Line 1 is set to the IP address of the Radius server. Line 2 is set to the same value as 'External web portal URL' of screenshot 2. Line 3 is set to the IP address of the webserver where the web portal is located. Line 3 was needed to get it working on iPhone too (I really don't know why). Our portal server is showing a HTML page with CSS inline and all images as inline base64 encoded values.