Microsoft Windows Dhcpv6 Client/Admin

I'm having a problem with my connection renewing its lease. I get the following error in Event Viewer:

Log Name: * * *Microsoft-Windows-Dhcpv6-Client/Admin
Source: * * * *Microsoft-Windows-DHCPv6-Client
Date: * * * * *4/1/2009 4:24:40 AM
Event ID: * * *1001
Task Category: Address Configuration State Event
Level: * * * * Error
Keywords: * * *
User: * * * * *LOCAL SERVICE
Computer: * * *xxxx-PC
Description:
Your computer was not assigned an address from the network (by the DHCP Server) for the Network Card with network address 0x001320173E88. *The following*

error occurred: 0x79. Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.

 

Wired or wireless network?

 

This computer is hard wired into the switch of a wireless router