DNS nslookup error timeout was 2 second

Dear Sir

after installation of 2008 server and dns when i typed a command of nslookup dos prompt i  m  facing error 

ip address          192.168.0.1 
subnet mask       255.255.255.0

preferred  Dns    192.168.0.1

DNS request timed out.
timeout was 2 seconds

Default Server: Unknown
address: fe80: : b9bc:6516:36ec:84f3

why its not showing me ip address

but at the client side its showing me

Default Server: abc
Address:  192.168.0.1

thanks in advance

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windows server and exchange server isa server problem