Windows - Active Connections probe fails with error Access is denied, however credential test is workingIssue Windows - Active Connections probe fails with error Access is denied, however credential test is working CauseOne possible cause is that the target server is not in ActiveDirectory (Windows) Domain, and the username of the credential is not in required format. ResolutionIf the computer is in an AD domain, then it should be: "DomainName\username"If the computer is not in AD domain, then it should be: ".\username" or "WORKGROUP\username"Related LinksDoc: Windows Credentials