windows network vises ikke - ARP cache?

Liste af fejl fra EventViewer:
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(1)
Dynamic registration or deregistration of one or more DNS records failed with the following error:
No DNS servers configured for local system.


(2)
The DNS server list of restricted interfaces contains IP addresses that are not configured for use at the server computer.

Use the DNS manager server properties, interfaces dialog, to verify and reset the IP addresses the DNS server should listen on.  For more information, see "To restrict a DNS server to listen only on selected addresses" in the online Help.


(3)
The DNS server was unable to complete directory service enumeration of zone [domain].dk.  This DNS server is configured to use information obtained from Active Directory for this zone and is unable to load the zone without it.  Check that the Active Directory is functioning properly and repeat enumeration of the zone. The extended error debug information (which may be empty) is "". The event data contains the error.

PRT (pointer) var væk... ...kan sådan en bare forsvinde?