Recurring Windows Login Prompt When Accessing Test Manager.
Issue Description
After the installation process, a Windows Login prompt pop-up asks for credentials. No matter what credentials are entered, the prompt reappears again and again.
Root Cause
Windows Authentication is enabled in IIS for Test Manager.
As UiPath apps like Orchestrator and Test Manager get their login token from Identity, the only integration with AD is made at Identity level.
Do not enable this setting in IIS for the Test Manager application, because it does not know how to process it. AD integration is processed after TM redirects to Identity.
Resolution
Set Windows Authentication to Disabled and restart the Test Manager application. Now, it should correctly redirect to Identity, and configured authentication should be working from there.