https://community.blueprism.com/t5/Product-Forum/Signon-failed-An-internal-or-connection-error-occurred/m-p/77868#M29968 I have added a new Active Directory Group to Users - Manage Users Roles. There weren't any errors adding it, but now no users can log on to Blue Prism. The following error appears: Signon failed - An internal or connection error occurred. Blue Prism will now exit. Contact your network administrator to resolve these configuration problems System.SystemException: The trust relationship between the primary domain and the trusted domain failed. at System.Security.Principal.NTAccount.TranslateToSids(IdentityReferenceCollection sourceAccounts, Boolean& someFailed) at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean& someFailed) at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.WindowsPrincipal.IsInRole(String role) at BluePrism.AutomateAppCore.clsServer.Login(String machine, Guid& userID) How do I correct this? Fri, 13 Oct 2017 16:26:00 GMT WillEls 2017-10-13T16:26:00Z https://community.blueprism.com/t5/Product-Forum/Signon-failed-An-internal-or-connection-error-occurred/m-p/77868#M29968 I have added a new Active Directory Group to Users - Manage Users Roles. There weren't any errors adding it, but now no users can log on to Blue Prism. The following error appears: Signon failed - An internal or connection error occurred. Blue Prism will now exit. Contact your network administrator to resolve these configuration problems System.SystemException: The trust relationship between the primary domain and the trusted domain failed. at System.Security.Principal.NTAccount.TranslateToSids(IdentityReferenceCollection sourceAccounts, Boolean& someFailed) at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean& someFailed) at System.Security.Principal.NTAccount.Translate(IdentityReferenceCollection sourceAccounts, Type targetType, Boolean forceSuccess) at System.Security.Principal.WindowsPrincipal.IsInRole(String role) at BluePrism.AutomateAppCore.clsServer.Login(String machine, Guid& userID) How do I correct this? Fri, 13 Oct 2017 16:26:00 GMT https://community.blueprism.com/t5/Product-Forum/Signon-failed-An-internal-or-connection-error-occurred/m-p/77868#M29968 WillEls 2017-10-13T16:26:00Z https://community.blueprism.com/t5/Product-Forum/Signon-failed-An-internal-or-connection-error-occurred/m-p/77869#M29969 Hi, By understanding the follpwing message: The trust relationship between the primary domain and the trusted domain failed. Those domains don’t have trusted relationships. Recommend to check this out. Fri, 13 Oct 2017 18:15:00 GMT https://community.blueprism.com/t5/Product-Forum/Signon-failed-An-internal-or-connection-error-occurred/m-p/77869#M29969 tjunicho 2017-10-13T18:15:00Z