OWA 2016 HTTP=>HTTPS redirect not working internally

I have setup a SSL redirect for my Exchange 2016 server, for the Outlook Web Access page. I also have a server 2016 domain controller with DNS/DHCP.

There are a lot of sites showing a how to, this is one of them:

http://www.mustbegeek.com/configure-url-redirection-in-exchange-2013/

This is working fine....externally
When i browse to (http://)remote.domain.nl internally i get a blank page. When i add https:// it is working fine, but like i said before the redirect is not working internally.

Any ideas on how to get the redirect also working internally?

Are you using the same URL for internal and external?

I forgot to mention i use Split DNS. So internally remote.domain.nl doesnt go to my externally IP but directly to the internal IP.

But as far as i know the https redirect is done on the IIS of the Exchange server. So it makes no difference if i go directly to the internal IP or by going to the external IP first. Which of course will also lead me to the internal IP in the end.

So in short: Yes i use the same URL, with a little side note

Do you have the same URL in EMC for Client access or are you just trying to use IIS URL Redirect?

I am using the same URL as in EMC Client access.

The IIS URL redirect is https://remote.domain.nl/owa

Using that is no problem because there is no https redirect needed.