In that last 3 months I face an issue with SCOM 2016 agents, when installed on a Domain Controller: the agent installed successfully and does not communicate.
I create SCOM 2016 Agent HSLookdown tool found on this link.
Later on I found that one of the resolution of fixing the agent states in System Center Operations Manager is to clear the SCOM agent cache link
I create collection of SCOM tools called SCOM Dolphin tools v1.0
SCOM Dolphin tools V1.0 content:
1. Agent clear Cache tool.
2. HSLookdown tool.
I will create another SCOM tools on the next releases in order to have centralized SCOM Tools Collection.