False "VM connection failure" alarm in Veeam Monitor

Veeam ONE
Last Modified:


By default the alarm has the following settings on Rules tab:
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VmDisconnectedEvent and VmConnectedEvent are sent out by Vcenter Server in case the host where a VM resides by any reason was disconnected from Vcenter or any other issue.

In the alarm history a state change during a certain period of time can be observed
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Detailed investigation and analysis of the database of Veeam Monitor shows that there are 2 events to be received from a vCenter server:
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As displayed on the screenshot, there are 2 events in last alarm state record. This mean that 2 events has been received simultaneously and have equal time stams.


Most likely a host experienced a connection state change within 1 second (a network link blinked or anything else). Further on a host could be working stable but the host connection state change generated 2 events: disconnection and connection. Both events came at the same time to Monitor Server, but Monitor considered that a VmDisconnectedEvent has been received later than VmConnectedEvent thus showing the "Error" status as the last alarm state.


Resolve the alarm though Monitor GUI manually:

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More Information

This issue will be fixed in the next release of the product.

Please be aware that we’re making changes which will restrict access to product updates for users without an active contract.


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