Event ID - 456

Event Id456
SourceDNS
DescriptionDNS server could not connect to DNS server at name.
Event InformationExplanation:
A network problem might have occurred, or the specified DNS server might be down.
User Action:
Use the ping utility to check the server specified in the message. If pinging fails, contact your network administrator to verify that the network is operating properly. If pinging succeeds, check to see if the DNS server service is running on the server. If it is, try stopping and restarting the service by using Services in Control Panel.
Reference Links

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.