Endpoint Management 6.08 UMS Articles Start of the UMS Console / Web App Current: UMS Web App: "404 - System Error" Message PDF Download PDF Download page UMS Web App: "404 - System Error" Message. Current page All pages UMS Web App: "404 - System Error" Message SymptomAfter the installation of the Universal Management Suite, the UMS Web App starts with a 404 system error.EnvironmentUMS 6.08.100 or higher with the embedded databaseMicrosoft Windows Server 2019ProblemThis might happen at startup when the UMS Web App is starting faster than the UMS Server service.Solution Restart the Windows service IGEL RMGUIServer. Details on how to do this can be found under HA Services and Processes. ×