Event ID - 5703

Event Id5703
SourceNetLogon
DescriptionThe Netlogon service could not read a mailslot message from %1 due to the following error: %2
Event InformationCAUSE:
This problem occurs if the Netlogon service receives a mailslot that is greater than the MAILSLOT_MESSAGE_SIZE (0x40c). This causes Netlogon to go into an infinite loop, filling the event log. At this point, Netlogon cannot respond to logon requests.
STATUS:
Microsoft has confirmed this to be a problem in Windows NT versions 3.5 and 3.51.

Following Microsoft article will give more information about this event.
Reference LinksNetlogon Stops Reponding or Records Event ID 5703

Netlogon Stops when Mailslot Message Is Larger than Specified

More information from Microsoft.

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