http://192.168.241.99:4444/ gives a hint about the system:
I think the infomessage should be without any informations about the possible firewall behind.
https://no hint about the system:4444
400 Bad Request
Bad Request
Your browser sent a request that this server could not understand.
Reason: You're speaking plain HTTP to an SSL-enabled server port.
Instead use the HTTPS scheme to access this URL, please.
Hint: https://webadmin:4444/
Additionally, a 403 Forbidden
error was encountered while trying to use an ErrorDocument to handle the request.