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Client not getting DNS from DHCP

I have a Linksys RV042 router that is setup as a DHCP server.  One client running Win XP at that location is getting an IP via DHCP, but does not get any DNS information via DHCP.  I had him do an ipconfig /all & send me the screen shot.  Right after the "DHCP Server" line there should be the "DNS Servers" line, but his has the "Lease Obtained" line right after the DHCP line & there is no DNS line...  I verified he can ping the outside world just fine, but obviously can't browse the net.  He used the repair connection problems in IE to resolve, which basically just does an ipconfig /release & ipconfig /renew.  This gives him a DNS IP & all is well.  So, why would a client not obtain DNS info from a DHCP server on the first try?
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jillianmaguire
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jillianmaguire
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1 Solution
 
EntityPacketCommented:
Are other clients getting IP addresses of DNS servers from that DHCP server? What DNS server IP addresses are configured to be handed out from that DHCP server?
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jillianmaguireAuthor Commented:
I think I have figured out the problem...seems there is another DHCP server on the network, that doesn't have DNS configured correctly.  When the client first gets an IP address, it comes from this unknown DHCP server, but when we release & renew, it seems to grab one from the right server.  I understand there should not be 2 DHCP servers on the network.  So, I now need to figure out where/what that device is & remove it from the network.  Unfortunately, I'm not onsite...  I can ping the IP & have tried logging into it via IE, but can't get past the username/password.  Without knowing what I'm logging into, seems impossible to figure out, without being onsite...
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EntityPacketCommented:
Yea, once you get on-site see if you can get a lease from the rouge server and then you should have its IP address.
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jillianmaguireAuthor Commented:
I finally found the mysterious DHCP server!  (I already had it's IP address from the ipconfig /all command)  After some investigation, I finally figured out it was a print server with DHCP turned on, with no DNS settings configured.....!  Issue resolved!
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Computer101Commented:
PAQed with points refunded (250)

Computer101
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