Hello, professionals,
I have a problem with Portal for ArcGIS 10.8.1.
I cannot connect to my enterprise portal on ArcGIS Pro with my enterprise URL.
I cannot sign in with my enterprise account when the window as below appears.
Therefore, I cannot publish my layers to the portal.

I cannot open storymaps on portal as well. It shows me a loading icon as below.

The developer window says "The application has to be accessed through a web server. Consult user guide for detail."
The issue happened after I transferred the portal and server machine.
I got new machines: one for the portal and one for the server.
I connect to the portal using the same domain as previous.
I believe the problem is occurring because the domain cannot return the designated ip address(the portal).
I am wondering what I can check for the domain application issues.
What I've checked is..
- that I can publish 2D feature layers by "adding a geodatabase" on the portal contents page.
- that contents are shown on web maps and web scenes.
- All of the datastores are validated.
- that I cannot add 3D feature on the portal by adding a geodatabase on contents page.
- 80 and 443 Ports are open.
Please let me know what I can do.
Thank you so much.