SSL weblink with Port no can't be access to internal network domain

Hi Sir, Mam,

I have deployed secured website in IIS 10 port 85, 443, 444.

The port 85 and 444 before is working but now it not working. Only website with default port 443

can access from computer(s) connected via VPN or connected inside network.

I'm not sure what changes made either neywork, firewall, etc.

Pls. need your help to fix this.

 

Rodel