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My home Windows 7 PC is having problems with a DNS lookup. I have several machines in my home network including one called "ROSE". When I execute ping ROSE from a command prompt, the ping is against the external IP address for the server "ROSE.mycompany.com" (a server at the company where I work). If I do ping TULIP (another machine in my local network) the ping is executed (correctly) against the machine in my home network; note that there is no TULIP registered in the "mycompany.com" domain.

My guess is that the name resolution looks in the "mycompany.com" domain first; if no result it then looks locally.

I cannot figure out why the name resolution is looking at "mycompany.com". I do have a company Cisco VPN client installed, but not currently installed. Here is the output from ipconfig:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : DAISY
   Primary Dns Suffix  . . . . . . . : mycompany.com
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : mycompany.com
                                       gateway.2wire.net

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : gateway.2wire.net
   Link-local IPv6 Address . . . . . : fe5b::68f5:f8aa:964d:579d%10
   IPv4 Address. . . . . . . . . . . : 192.168.1.104
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.254

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Connection-specific DNS Suffix  . :
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:935c:104b:345:9f54:a9e3
   Link-local IPv6 Address . . . . . : fe80::104b:345:943f:fbe3%12
   Default Gateway . . . . . . . . . : ::

Tunnel adapter isatap.{255B0CD9-D11F-98E3-B536-4D7EFC23F3FF}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :

Tunnel adapter isatap.gateway.2wire.net:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : gateway.2wire.net

What else should I be looking for?

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1  
It might be helpful to run ipconfig /all and include the DNS servers. –  ta.speot.is Mar 29 '13 at 2:56
    
Added ipconfig /all information. –  rlandster Mar 29 '13 at 3:21

1 Answer 1

up vote 2 down vote accepted

Click on Start, Control Panel, Network and Sharing Center, Local Area Connection, and in the window that pops up, click on properties. Then click on Internet Protocol Version 4 (IPv4). Click on the Properties button, then click on Advanced. In the window that opens, click on the DNS Tab. If the DNS suffix box is filled, clear it.

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The box labeled "DNS suffix for this connection" was already empty. Is that the box you meant? –  rlandster Mar 29 '13 at 3:28
    
Yes. Are there any specified in "Append these DNS Suffixes"? –  Davidw Mar 29 '13 at 3:59
    
No, nothing in "Append these DNS Suffixes". –  rlandster Mar 29 '13 at 4:30
1  
What is the computers full name in Control Panel, System? –  Davidw Mar 29 '13 at 5:08
    
The computers full name is "DAISY.mycompany.com". Ah. That fixed it. The setting was under that System properties "Primary DNS suffix of this computer". –  rlandster Mar 29 '13 at 6:01

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