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TCP/IP Not Working and Missing Settings on LAN Interface

Posted by John Almirante on Tuesday, November 9, 2010
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My Desktop/Storage PC went down during a power outage.  After power was restored, I found that I couldn't surf the Internet.  I checked the LAN interface in Network Connections and found that it didn't have any TCP/IP values.  Usually, they have at least 0.0.0.0 as its IP and Subnet Mask but in this case, it was just blank.

I tried disabling and repairing the LAN network connection but its TCP/IP values were still blank.  After I tried repairing the connection, I got this message - "Failed to query TCP/IP settings for the connection."  I also tried disabling and enabling the IPX/SPX and TCP/IP protocols and then tried removing them but all that didn't work.

After a bit of research, I uninstalled all my Network adapters in Device Manager and rebooted.  My network adapter was immediately detected again after startup.  This fixed my LAN network connection and I was able to surf again.

I figure that what happened was that, prior to the power outage, I had been using MojoPac when I logged on to the other user profile on this computer.  MojoPac seems to have problems with saving its virtualized registry if multiple user profiles are active.  I belive that's why MojoPac won't launch if it detects that more than one user is logged on.

I realized I had made a boo-boo so I switched to the first profile and immediately exited MojoPac.  This seemed to go fine but when I went back to the other profile, I saw a dialog saying that MojoPac was unable to save its settings.  I just closed those dialogs and just went on with what I was doing and ignored them.

I think that the part of the settings that MojoPac was unable to save or revert was the network connection settings so when the computer had to be restarted after the power outage, the network connection settings got messed up.

I'm not exactly sure what happened but at least I do know that I have to make sure not to logon to another profile while MojoPac is running and I learned how to fix my LAN network connection if I find that the TCP/IP values are blank.
 
 

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