When we click on a computer, the list of Failed jobs (and modules) is retrieved and displayed on the homepage of the computer under the Status box :
<Please see attached file for image>

During the retrieving job status process, GUI is sending a message to plugin amms (Asset Management usage server (amms)) of the first Scalability Server by alphabetic order.
To determine which scalability server is used, go under
Control Panel/Scalability Servers/All Scalability Servers.
Click on Name column to order it by name.
In this example, the first scalability server by alphabetic order is JY_PC5 :
<Please see attached file for image>

In logs DSM\logs\TRC_AMMETERAPI_*.log, we could see this :
Metering A|CFSMCAPI |CFSMCAPI |000000|NOTIFY | SMEVENT : New Session. Target = (JY-PC5) 192.168.188.167\CA_ITRM_METER. LID = 16640003. SH = 064e8ad8
If first scalability server is not available, not reachable or plugin amms is not running, there is a delay of 45 seconds due to the timeout.