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Server 2003 - Can't Resolved DNS

Posted on 2013-11-06
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Last Modified: 2013-11-19
Got a tricky one here.  Customer has a win 2003 box I manage.  Last night they attempted to remove their Sophos AV client from the server (apparently it gave some errors).

As of today, the server is unable to resolve DNS.  Checked the DNS servers, they are oline and serving up DNS for other clients.  Set the DNS server to google Public DNS (8.8.8.8), no go.

We can ping both internally and out over the WAN if ran via IP address.  Also, if I ping either my klocal host name (or localhost) from  the server, it pings but resolves a very odd IP address:

C:\Documents and Settings\Administrator>ping localhost

Pinging ShoreTel [$ÿ] with 32 bytes of data:

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128



I also note there were DCOM errors for the netman service, but I did make a change to allow local activation for the NETWORK SERVICE account.  Seems to have resolved the DCOM errors

I have the client working on spinning up a 2008R2  VM slice
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Question by:JamesonJendreas
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Accepted Solution

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Perarduaadastra earned 2000 total points
ID: 39628078
Try reinstalling the NIC drivers. AV scanners tend modify the network stack, and often don't put things back properly when they are uninstalled.
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by:JamesonJendreas
ID: 39628134
Thanks,
I actually seem to have resolved with:

netsh int ip reset resetlog.txt
netsh winsock reset

then ran a reboot.
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Expert Comment

by:Perarduaadastra
ID: 39658655
You seem to have accomplished the same thing in a different way - the IP reset command effectively re-installs TCP/IP, thereby removing any damaged or modified components in the stack and replacing them with standard good ones.

You should really have marked your own solution as the accepted one, because it's the one that actually solved the problem. If you re-open the question you can then give the credit where it's due!
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