Estimating extremely slow after reboot of terminal server for windows non admin user

Question

Hello all! We are having an issue where Estimating on a remote app "terminal services" after reboot of the terminal server runs extremely slow for windows non admin users. This has happened before and a combination of rebooting the database server and app server eventually resolves the issue. However, this time it is NOT. 
 
 We have intermittently had this issue since version 17.1. We are currently 18.11. Any help would be appreciated

Daniel N. · Accepted Answer

We might of had a revelation today with our specific case. In our environment we have multiple domain controllers. For simplicity we'll say DC1 and DC2. 
 Today I restarted DC1 to do some updates. This normally shouldn't matter, because that's what DC2 is for. As soon as DC1 restarted, Sage Estimating began running extremely slow on the Remote App Server. A restart of the Sage Estimating Database server made no difference, neither did a second restart. 
 On the Sage Estimating Database server I opened a command prompt and ran nltest /dsgetdc:DOMAIN NAME and it returned the Sage Estimating Server was authenticating against DC2, which again, shouldn't matter. I then ran nltest /Server:SAGEDBSERVERNAME /SC_RESET:DOMAINNAME\DOMAINCONTROLLERNAME to reset it back to DC1. 
 Instantly Sage Estimating performance was back to normal! 
 I currently don't know why the Sage Database server authenticating to a secondary DC would cause this problem. I will attempt to replicate this problem in our environment after hours, maybe it's a fluke?

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Estimating extremely slow after reboot of terminal server for windows non admin user

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