Hello there
I'm using version XGS126 (SFOS 21.0.0 GA-Build169) 
The Log Viewer is no longer displaying real-time updates.
The last log I received was from one month ago.
I am using the NTP time server from ntppool, and all my rules have logging enabled.
I have checked system diagnostics show disk, and everything appears normal.
I also checked show on-box-reports, and the status is enabled.
In system diagnostics show subsystem-info, the Service reportDB status is Running.
Quote