Troubleshooting: 404 - System Error Message at UMS Web App Startup
Symptom
After the installation of the Universal Management Suite, the UMS Web App starts with a 404 system error.
![](../../../__attachments/127800047/404_error_WebApp.jpg?inst-v=1988f46b-383c-421a-87c5-1a663c4b07b1)
Environment
UMS 6.08.100 or higher with the embedded database
Microsoft Windows Server 2019
Problem
This 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 IGEL UMS HA Services and Processes.