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Default gateway ip disappears on SBS2008 after restart.

Posted on 2011-03-15
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Last Modified: 2012-05-11
Seems like a common problem but never the less I can't solve it!

Mainly the problem is, that I have this SBS2008 running virtual in a Hyper-V environment.
Everytime the server is restarted the default gateway ip address has disappered from the local area connection. I can just enter this manually and everything works fine again - until next time!

Now a lot of your guys seems to have experienced this problem and are posting a lot of possible solutions but these don't solve MY problem! :-)

I have tried to run the hotfix from Microsoft.
Manually check the registry for emty gateway addresses and checked DNS Interfaces for wrong addresses.
NOTHING has helped!

BUT! - if I go to the Device Manager - show hidden devices I see a LOT of hidden network adapters with strange names:
ISATAP. {2C2F40FC-CC8B-449E-B8FF-FDF82C72246D}
RAS Async Adapter
WAN miniport (IP)
+ 8 more named WAN miniport something.

Should I delete all of this and start all over again?
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Question by:Ohmit
2 Comments
 
LVL 35

Accepted Solution

by:
Cris Hanna earned 250 total points
ID: 35138936
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LVL 56

Assisted Solution

by:Cliff Galiher
Cliff Galiher earned 250 total points
ID: 35142696
Don't just "check" the registry key for an empty entry. Illegal characters can also cause the problem. I recommend deleting the entry and recreating it. As CrisHanna wrote, common problem, and so far this fixes is every time I've run into it.

-Cliff
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