We have a large amount of servers with a update deployment with no deadline.

All of these machines have a message saying that last state is received at exact samen time one month ago.

Patches get deployed but state is not updated.

I know and used powershell to trigger a state message.

I dont understand where this information is lost.

Anybody that can help?

If there's no deadline, the updates were not installed automatically. Are you saying someone manually installed these updates by logging into each system?