Strange issue. Windows 7

• Wednesday, October 10, 2012 6:26 PM

   

   
  

  0

  I've been trying to find a resolution for this for a few days to no avail, hopefully someone can point me in the right direction.

  I seem to have a DNS record to an IPv6 server that hasn't existed on my network for more then a year, no matter what I try and do, it keeps coming back.

  If I reset the stack either by

  netsh int ip reset

  or

  netsh interface ipv6 reset

  and reboot the machine, the errant DNS server goes away.

  If I sleep the same machine, the moment it comes out of sleep the DNS server is back.

  I can't for the life of me find it, it's only happening on one computer.

  Here's an example after the reset.

  Wireless LAN adapter Wireless Network Connection:
  
     Connection-specific DNS Suffix  . : test.local
     Description . . . . . . . . . . . : Ralink RT5390 802.11b/g/n WiFi Adapter
     Physical Address. . . . . . . . . : C0-F8-DA-B0-95-AE
     DHCP Enabled. . . . . . . . . . . : Yes
     Autoconfiguration Enabled . . . . : Yes
     Link-local IPv6 Address . . . . . : fe80::7c2c:f398:5b05:92ab%15(Preferred) 
     IPv4 Address. . . . . . . . . . . : 192.168.15.21(Preferred) 
     Subnet Mask . . . . . . . . . . . : 255.255.255.0
     Lease Obtained. . . . . . . . . . : October-10-12 2:09:53 PM
     Lease Expires . . . . . . . . . . : October-18-12 2:10:06 PM
     Default Gateway . . . . . . . . . : 192.168.15.254
     DHCP Server . . . . . . . . . . . : 192.168.15.1
     DHCPv6 IAID . . . . . . . . . . . : 381745370
     DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-A7-CD-28-2C-27-D7-B1-D7-D3
     DNS Servers . . . . . . . . . . . : 192.168.15.1
     NetBIOS over Tcpip. . . . . . . . : Enabled

  And here it is after the machine wakes from sleep

  Wireless LAN adapter Wireless Network Connection:
  
     Connection-specific DNS Suffix  . : test.local
     Description . . . . . . . . . . . : Ralink RT5390 802.11b/g/n WiFi Adapter
     Physical Address. . . . . . . . . : C0-F8-DA-B0-95-AE
     DHCP Enabled. . . . . . . . . . . : Yes
     Autoconfiguration Enabled . . . . : Yes
     Link-local IPv6 Address . . . . . : fe80::7c2c:f398:5b05:92ab%15(Preferred) 
     IPv4 Address. . . . . . . . . . . : 192.168.15.21(Preferred) 
     Subnet Mask . . . . . . . . . . . : 255.255.255.0
     Lease Obtained. . . . . . . . . . : October-10-12 2:09:53 PM
     Lease Expires . . . . . . . . . . : October-18-12 2:15:09 PM
     Default Gateway . . . . . . . . . : 192.168.15.254
     DHCP Server . . . . . . . . . . . : 192.168.15.1
     DHCPv6 IAID . . . . . . . . . . . : 381745370
     DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-A7-CD-28-2C-27-D7-B1-D7-D3
     DNS Servers . . . . . . . . . . . : fe80::4eba:dd83:d86d:253e%15
                                         192.168.15.1
     NetBIOS over Tcpip. . . . . . . . : Enabled
     Connection-specific DNS Suffix Search List :
                                         test.local

  I will further note, it also happens if I disconnect from the current wifi network, connect to another, then connect back.

  The machine is running Windows 7, fully updated, there is no manual IPv6 information added anywhere.

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