Pro signin greyed out

Question

So what triggers the signin option for a portal to be greyed out.

I can add the portal connection in pro, set it as active, test availability, but the signin option is greyed out. Which makes it very hard to use or do anything with the portal from pro

Connecting to a 10.5.1 Portal from Pro 2.1

JohnMax · Answer

I had this same problem and contacted ESRI support.  It turns out it was a problem with a registry entry.  In Regedit navigate to Computer\HKEY_CURRENT_USER\Software\ESRI\ArcGIS Online For Pro\SignIn\NAMEOFYOURPORTAL

Make sure that "Authentication" is set to 0.  If not, choose Modify and change it.  This worked for me.

JohnBrockwell · Answer

I have multiple Portals and 4 AGOL organizations I belong to. I have the same issue since upgrading to 2.2.1. I removed all my Orgs and re-added them and it still doesn't work. I just shake my head and keep moving. I just accept Pro for its bugginess and use it as best I can.

I'm done trouble shooting Pro. When something doesn't work I find a work-around. Big difference. I publish to one org and move data from the org I can get to work with Pro and bounce the services around up there. Then delete copies that are in orgs not intended.

JacksonTrappett · Answer

Thank you Alistair - this worked for us!  Solved the problem that we've had for months now!