I am getting the following sign in error for my enterprise sign in on Portal for ArcGIS:
Invalid_Signin, This account is setup with sign in by administrator pre created users only, you need to contact account administrator. IdpUsername: '[some crazy guid]' Username: '[the same crazy guid]'
I was signed in working as normal, and then it kicked me out and I can get back in. I tried another browser, and it still did not work. Any ideas?