Sorry, you will need to provide more information.
Your subject/title speaks of iVMS-4200, but your question mentions Hik-Connect.
What are you trying to do?
What happens?
NB - just in case - you cannot access cameras at a remote site in iVMS or a browser via the Hik-Connect portal (only in the App).
If, for instance, you want to reach cameras at a remote site from iVMS or a browser, you will need to configure port forwarding etc. at the camera site.