There are no subnets under the "Self-electing subnet services" tool for ANY of the components.
This issue has been seen on 2016.3 SU3 and earlier service updates. We have not been able to determine why as of yet.
- Navigate to https://localhost/STS/issuetoken on the core server. Cancel the download when it comes up.
- Close the console and run the following commands in powershell as admin
Stop-Service -DisplayName LANDesk*,Managed* -Verbose -Force; iisreset; Start-Service -DisplayName LANDesk*,Managed* -Exclude "Managed Planet Task Listener" -Verbose
- Relaunch the core server and check your "Self-electing subnet services" tool for the subnets.