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Domain Controller - Windows Server 2008 R2 Standard

Client OS - Window Server 2003 ( Terminal Server )

I am unable to ping my Active Directory Domain Name i.e corp.abc.com. ( Please see the print-screen )

I am successfully able to nslookup & ping my DC server ip address ( Please see the print-screen )enter image description here

I am also attaching print-screen of IP configuration. enter image description here

Can you tell me why i am unable to ping, but successfully able to resolve through nslookup command and also able to ping with DC server ip address

Param
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7 Answers7

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You can also use following command to resolve this problem.

1) net stop dnscache

2) net start dnscache

  • I faced with the issue several times on different machines. What is the reason of this behavior? – erop Dec 24 '15 at 14:28
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Ping uses the DNS Client service and I think nslookup establishes a winsock connection. Try to stop DNS client service to see if it might help. Make sure you are trying to ping from a client that is joined with the ADC.

Use these commands to reset some of the network states:

As Torai suggested try to flush DNS resolver cache : ipconfig /flushdns
Reset TCP/IP stack to defaults : netsh int ip reset reset.log
Flush routing table : route /f (reboot required)
Reset WINSOCK entries to defaults : netsh winsock reset catalog

I hope that helps.

Zeeshan
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I had an issue like this recently turned out to be the netbios cache was out of date.

Try flushing it using

nbtstat -R

then ping again

http://technet.microsoft.com/en-us/library/cc757819(v=ws.10).aspx

Sam
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Please restart Dnscache services. Go to services.msc --> Click on DNS Client and than restart.

Param Gup
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From the Domain controller ping domain.com If still the issue then run below command from cmd devmgmt.msc uninstall the network card from the console. Later select "Scan for hardware changes" and the network will be back again.

Regards Sufyan.samad

Sufyan.samad
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You probably need to flush your DNS. nslookup is going to the server for it, but local DNS has it cached.

ipconfig /flushdns
Torai
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I had the same problem. I went and turned off firewall and it worked. Usually systems with FireWall enabled do not allow pinging in certain cases. Go to PowerShell. Type in the following.

netsh advfirewall set allprofiles state off

The next line should be generated as

Ok.

Try pinging your domain name now. Hope this helps! Thanks.

Preethy Gopalakrishnan
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