I read here https://wiki.mikrotik.com/wiki/Manual:H ... PS_example
Note: Browser will still warn end-user about redirection even with CA signed certificate! This warning message cannot be avoided.
Can someone kindly explain if this is the true case. Even with CA signed Certificates?
Maybe and sometimes..
If your redirection is doing a re-direct when someone opens https://www.google.com
then yes, it will warn the user because you are not google.com..
The error will be be domain mis-match though.
The newer OSs, mobile and Windows 10 (not sure about MacOS), pop up an alert now when connecting to Hotspots that require authentication, 'tap here to authenticate', then it opens the webpage for the AP to 'accept' or 'enter code/password'. I have no idea how to use this feature though. I don't know the back-end process though. Likely documented somewhere. haha
Get your certificate imported correctly, you should be able to access the hotspot page with no errors using the domain your certificate it for. After that, look into that process. Just opening your browser's homepage, yes, that will still cause a name mismatch.