This week, I have posted a question about grayed out linux servers in scom 1801.
At this moment, we see that all our newly added servers, also windows servers came in a grayed out state, but scom recieve alerts from them. Looking at the logs, we see the communication bewteen the agents and the operation manager, but in the state view they are grayed out.
Is there anyone who knows where to look to solve this problem?
Always start by checking the Operations Manager event log on both SCOM management servers and the agent computers for clues.
Note: SCOM 1801 is no longer supported, I would highly advise you to start planning an upgrade to either SCOM 2016 or SCOM 2019 (the latter the better).