Hi Anjitha,
Try this:
- Navigate to ArcGIS Server Administrator Directory > Home > system > platform services
- Make sure that all the Services like the Synchronization Service, Compute Platform and Message Bus are in STARTED state (it can be checked using the Supported Operations: "status" button), if they are STOPPED, you can manually START it
- Navigate to Windows Services panel (Windows Run > services.msc)
- Stop the ArcGIS Server, ArcGIS GeoEvent Gateway and ArcGIS GeoEvent Server Windows service
- Start of the ArcGIS Server, then wait for around 5 minutes
- Start of the ArcGIS GeoEvent Gateway, then wait for around a minute
- Start of the ArcGIS GeoEvent Server, then wait for around a minute
- Clear the browser cache
- Check the logs again to see if there are any "Failed to create connection cxn…" error messages
Hope this helps!
Regards,
Richardson