Hello - our 10.8.1 upgrade to 10.9 went well. We have a distributed deployment with separate web, portal, hosting and federated sites on Windows 2016 VM machines.
I have re-shared everything I can think of from Living Atlas, Routing, Geocoding services. No issues with our web adaptors, no 'bounce' from DNS alias to machine names, so problems with the web context url. No problem with the 'arcgisonline' redirect uri's. The Monitor Administrator returns valid tokens when testing the portal and the hosting and federated sites, whether using the web adaptor site names or the internal DNS names.
Everything that is supposed to be publically accessible is. However, we are getting an error that I had not seen since 10.6 from the hosting site:
Rest - Exception in get user privileges Server machine 'https://myDNSServerName:7443/arcgis/sharing/rest/community/self' returned an error. 'Invalid token.'
Honestly, if I did not have Monitor installed I probably would not have noticed since there is no impact to any of my hosted services that I can tell so far, but the logging is excessive (100s and 1000s of entries) . Very similar to the reply from @danweiss from this old post here:
https://community.esri.com/t5/arcgis-enterprise-portal/arcgis-portal-server-exception-setting-ownership-role/td-p/626444
Any suggestions anyone?
@JonEmch
@JonathanQuinn
@Kathleen_Crombez