Configurations for Citrix Workspace app for Windows and SSON apply correctly to registry, but on intiial logon attempt, user receives the error "Your apps are not available at this time."

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To resolve customer ran:

netsh winhttp reset proxy

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Problem Cause

There was a proxy that was set and carried over in the 20H2 WIM This proxy did not show up when running

netsh winhttp show proxy

 

Procmon logs showed that the proxy was intercepting AuthManSvr.exe traffic to the StoreFront server so AuthHttpRequests were not completed and configuration couldn't complete