https

Hi, I just activated HTTPS on 8443 port and I cannot use it. Router page is loading very slow in Chrome (tested from phone also, from intranet and from internet). The page in slowly loading with message: establishing secure connection. In the end the page is loading, but after few minutes...

If i use HTTPS to access my router's management web page from LAN, i get warning that certificate is invalid, chain broken. In short - default certificate in firmware is incorrect. Also, HTTPS access works very slowly, i suspect due to broken certificate chain. How can i fix that? I understand...