Applies to

Windows Server 2008, Windows Vista,  Windows 7, Windows Server 2008 R2



Windows Operating System




Microsoft Windows DNS Client



Symbolic Name



Name resolution for the name %1 timed out after none of the configured DNS servers responded.



Customers have reported the following scenarios as possible causes for this event:

  -  TCP/IP Offload is enabled for a network adapter
  -  TCP/IP v6 is enabled and their ISP does not yet support TCP/IP v6.
  -  The spanning tree “portfast" setting is not enabled on your servers switch ports.
  -  Router and PC communicating with different channel or standard.

User Action

Method one: Disable RSS, Autotuning, and Taskoffload

1.   Run the following command in an elevated command prompt in Windows 7:

netsh interface tcp set global rss=disabled

netsh interface tcp set global autotuninglevel=disabled

netsh int ip set global taskoffload=disabled

2.  Disable the Scalable Networking Pack (SNP) in Windows 7 by changing the registry settings as follows:

Perform a full-system backup before you disable the SNP.



If the registry keys do not exist, create them, and then assign the previous values.

Method two: Disable TCP/IP v6

To disable TCP/IP v6

1.  Click Start, click Control Panel, click Network and Internet, and then click
View network status and tasks.

2.  In the left pane, click Manage Network Connections.

3.  Right-click Local Area Connection, and then click Properties.

4.  In the pop-up box, clear the Internet Protocol Version 6 (TCP/IPv6) check box.

5.  Click OK, and then restart your computer.

 To enable TCP/IP v6

1.  Follow steps 1 through 3 in the previous procedure.

2.  In the pop-up box, select the Internet Protocol Version 6 (TCP/IPv6) check box.

3.  Click OK, and then restart your computer.

Method three: Enable the spanning tree portfast setting in your router 

This action varies depending on your infrastructure router. Consult your manufacturer for further details.

Method four: Set your router and PC to communicate with same channel and standard manually

1. Go to your router admin page which should be (confirm with router manufacturer).

2. Navigate to WiFi settings and choose a channel which should comply with your location, for ex: 11. Save.

3. Choose Standard to broadcast WiFi signal as G only not abgn, bgn, gn (If your router is N capable and any PC in your home/office is only G ready). Save.

4. Go to your PC Network and Sharing Center (Windows 7) and Click on Change Adapter Settings, select your WiFi adapter, right click and choose Properties.

5. In the pop up window select Configure, in next window click on Advanced tab and browse settings there and choose the same channel you choose in your router for ex: 11 and the same standard as G not abgn, bgn or gn. Save and Exit.