Good morning. We have gotten Portal (10.9) up and running a few weeks ago, created several web apps, and opened it up to the company of 40 users. We are using Windows Authentication and a local server environment.
My problem: On a somewhat-regular basis, when I open Portal, it takes a LONG time to load (just shows a white screen). It takes so long that I reloaded it and cleared the cache the first few times it happened.
When inspecting the browser and checking the network activity, it appeared that one step was the reason for the length of the load. It was validating the access of the user (I believe). The URL is below (with our actual internal info replaced by "x"). Please also note that the web adaptor is hooked to the /portal/ portion of the URL since we already have Server on the machine.
https://www.xxx.com/portal/sharing/rest/oauth2/validateAppAccess?f=json&client_id=arcgisonline
I was told this might have something to do with IIS, but could not find a similar topic anywhere on the forums. Anyone run into this problem before? I have a brief history of that server and our enterprise creation history below if it helps.
Our Enterprise history:
20 months ago, we setup the new server, and I installed ArcGIS Server 10.7 only (no portal) with the web adaptor. It has Windows Authentication and has worked fine.
This summer, we upgraded to 10.9. I first upgraded Server to 10.9.
We installed Portal 10.9. Installing the web adaptor caused some problems. I will admit I gave the adaptor the server name in the URL instead of the final certificate name when first doing that setup. We uninstalled the web adaptor with ESRI tech support and eventually got it working.
Apparently we have multiple DNS entries, so had to update some of the properties files in the Portal install area to get it to work.
Other than the periodic extremely slow load of the home page, the Portal appears to be working fine.