tracyprier
asked on
Some DHCP clients not picking up internal DNS server assignments
I have a strange problem that has just developed.
A few users (who get their IP via our DHCP server as do all our on-site clients) are not seeing or picking up the internal DNS server.
When I do an nslookup i get "unknown server"
When I manually assign the DNS server IP in their network setup all is fine
What could be causing this odd behaviour??
thanks
Tracy
A few users (who get their IP via our DHCP server as do all our on-site clients) are not seeing or picking up the internal DNS server.
When I do an nslookup i get "unknown server"
When I manually assign the DNS server IP in their network setup all is fine
What could be causing this odd behaviour??
thanks
Tracy
have you added the dns server into the dhcp properties field?
ASKER
yep, always been there and its only a few users who are getting this
Give a try with deleting lease information in DHCP scope for those clients and then ipconfig /release and ipconfig /renew at client side.
ASKER
Tried that, no fix.
I found that if I manually specify the internal DNS server under the PC's network settings it works fine.
I have ensured there is a DNS ptr record in the DNS server for itself.
I found that if I manually specify the internal DNS server under the PC's network settings it works fine.
I have ensured there is a DNS ptr record in the DNS server for itself.
ASKER
Further informaiton.
My PC lost internet connectivity so I did a nslookup command which returned a "server: unknown"
Did an IP release / renew then ran nslookup again and the DNS server is there.
My PC lost internet connectivity so I did a nslookup command which returned a "server: unknown"
Did an IP release / renew then ran nslookup again and the DNS server is there.
so still the clients facing that same problem ?
ASKER
Yes same issue
please recheck the scope options in ipv4.
006 DNS server
015 DNS Domain Name
did they point to the valid DNS Server's IP ?
006 DNS server
015 DNS Domain Name
did they point to the valid DNS Server's IP ?
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ASKER
Turned out to be a WAP with DHCP enabled.