Recently, on SQL Server where our SSIS jobs were deployed, while trying to expand SQL Server Agent node, we faced error “Agent XPs Disabled” as shown below:
To fix this issue, we executed below queries in the sequence:
EXEC SP_CONFIGURE ‘show advanced options’, 1
GO
RECONFIGURE
GO
EXEC SP_CONFIGURE ‘ show advanced options’
EXEC SP_CONFIGURE ‘Agent XPs’, 1
GO
RECONFIGURE
After executing above queries, we were able to expand SQL Server Agent node.

Hope it helps !!