Okay gang. Here's the skinny.
Recently got the company to pay for renewing ES and upgraded to 3.1.1 from 2.81(or something close). The upgrade went fine but I'm now getting some odd alerts on the Management server. It's not all my servers but it is a few of them. The full alert is this.
SOURCE : EventSentry
CATEGORY : Heartbeat Monitoring
EVENT ID : 11051
COMPUTER : $MANAGEMENT_SERVER
DATE / TIME : 6/8/2015 11:34:56 PM
MESSAGE : The AGENT status of host $SERVER remains at UNKNOWN due to error "".
I've checked the status of the agents and everything is fine. They are also the most current agent. The individual servers are not throwing errors about stopped services or rebooting at the time of these alerts. I seem to get a batch of about 5 servers at a time when this happens. I'm running the Heartbeat service under a domain admin so authentication is not an issue. I'm going to try and remove and reinstall the agent on the effected servers but is there anything else I should try or look at?