After upgrading to Ideagen Internal Audit (Aura) v6.0.1.4 or later you might find that the Robot service does not start, and the Robot error log shows the following:

ERROR: , Pentana.Tng.ServerRobot.RobotService, 4, 18/09/2023 15:41:16, *****An exception occurred at Monday, September 18, 2023 3:41:16 PM using version 6.0.1.4
1. Exception of type: TngException[AuthenticationError] - Message: Exception has been thrown by the target of an invocation.
at Pentana.Tng.Agent.WcfProxyManager`2.get_Proxy()
at Pentana.Tng.Agent.WcfProxyManager`2.GetTypesXml(Version version)
at Pentana.Tng.Agent.AgentHelperInstance.RemoteCall[TResponse](ServiceMethod`1 execute, Boolean checkInitialized)
at Pentana.Tng.Agent.AgentHelperInstance.GetTypesXml()
at Pentana.Tng.Agent.AgentHelperInstance.InitializeTypeStore(String instanceName)
at Pentana.Tng.Agent.AgentHelperInstance.InitializeHelper(String instanceName, Boolean autoRetry, Version DBVersion)
at Pentana.Tng.ServerRobot.ServerRobot.Initialize()
1.1. Exception of type: TargetInvocationException - Message: Exception has been thrown by the target of an invocation.
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at System.Activator.CreateInstance(Type type)
at Pentana.Tng.Agent.WcfProxyManager`2.CreateProxy()
at Pentana.Tng.Agent.WcfProxyManager`2.get_Proxy()
1.1.1. Exception of type: NotSupportedException - Message: The requested security protocol is not supported.
at System.Net.ServicePointManager.ValidateSecurityProtocol(SecurityProtocolType value)
at System.Net.ServicePointManager.set_SecurityProtocol(SecurityProtocolType value)
at Pentana.Tng.Core.SecurityProtocol.Set()
at Pentana.Tng.Agent.TngServiceProxy..ctor()
**************************************************
ERROR: , Pentana.Tng.ServerRobot.RobotService, 4, 18/09/2023 15:41:21, Termination - Jobs Failed Tests

This can occur if Ideagen Internal Audit (Aura) v6.0.1.4 is running on a server that has a .NET Framework version earlier than v4.8.  .NET Framework v4.8 is a prerequisite for this version of Ideagen Internal Audit (Aura).

Check the installed version of .NET and update as required.