we are using SDL Web 8.5 while updating publication properties we are not able to save the publication and getting below error
Item of type 'MappingData' can not be saved. Unable to connect to 'net.tcp://localhost:2660' using authentication type 'Windows'.
The logon attempt failed
Component: Tridion.TopologyManager.Service
Errorcode: 11
User: NT AUTHORITY\NETWORK SERVICE
StackTrace Information Details:
at Tridion.TopologyManager.Connectors.ContentManagerValidator.ThrowConnectionProblemsException[T](CmEnvironmentData cmEnvironment, String resourceName, Exception innerException)
at Tridion.TopologyManager.Connectors.ContentManagerValidator.AssertPublicationExistAndUrlValid(MappingData mapping, String mappingUrl)
at Tridion.TopologyManager.Connectors.ContentManagerValidator.OnUpdating(TopologyItemData item, TtmOperationContext context)
at Tridion.TopologyManager.CrossSystemBusinessLogicRegistry.OnUpdating(TopologyItemData item, TtmOperationContext context)
at Tridion.TopologyManager.TopologyItem`1.Update(T delta, TtmOperationContext context)
at Tridion.TopologyManager.Service.Controllers.TopologyItemController`1.Update(String key, T entity)
at Tridion.TopologyManager.Service.Controllers.TopologyItemController`1.Patch(String key, T entity)
at lambda_method(Closure , Object , Object[] )
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()
The MTS user is already there in CMS and has system administrator rights
Get-TtmCmEnvironment
PowerShell commandlet? Does the user identified in the CoreServiceCredentials attributed definitely have access to the Content Manager? Could the password have changed?