If you ever come across the issue of your system jobs always being in a waiting state, you may want to verify some values in the MSCRM_CONFIG.dbo.DeploymentProperties table. To verify the data you will need to run the following query against SQL.

Select NVarCharColumn from DeploymentProperties where ColumnName IN ('ADSdkRootDomain', 'ADWebApplicationRootDomain', 'AsyncSdkRootDomain');

This query should [...]