DHCP renew: access is denied

[Scott Clowers]

OK, I'm stumped on this one. Windows XP Pro. Started with SP1, installed SP2
to see if it would correct the problem. Logged in as administrator and have
checked to make sure administrator is member of administrators group. DHCP
client service is started. This computer was working and will still work
with a static IP Address. I changed it to DHCP and it would not obtain an IP
address. Rebooted it and still no IP Address. Go to command prompt and type
ipconfig. It has no IP Address (0.0.0.0). Type ipconfig /renew and after a
delay it responds with "An error occurred while renewing interface Local
Area Connection : Access is denied".

I have gone as far as running a sniffer on the network and here is what
happens:
1) This machine sends out a DHCP Discover
2) The DHCP Server (a SonicWall Pro230) sends a DHCP offer of IP Address
10.1.81.20
3) This machine sends a DHCP Request for 10.1.81.20
4) The DHCP server sends a DHCP NAK
5) The process repeats

I have moved the machine to a different jack to see if it was a connectivity
issue but it made no difference. Has anyone else seen this?

Scott Clowers
Network Administrator
Nexcheck

 

[Postmandug]

From an earlier post of mine....

OK, I've seen too many references in other posts concerning similar
problems. I'm suprised some of you MVP's haven't resolved this. I had one
computer on my network getting the "Limited or no connectivity" message.
After researching MS Knowledge Base I tried two solutions. Repair the
TCP/IP stack and reset the WINSOCK file both using the NETSHELL utility.
Apparently either a virus or malware is corrupting these files. I could not
get an IP address from DHCP. Tried static IP address. I could then see the
network, but still not get on the internet. This led me to believe there
was a problem in the files that IE actually uses to connect. Voila, reset
WINSOCK file and it worked. The thing that makes me believe that malware or
viral infection is causing it is that I NEVER download anything unless I
know what it is. However my son's computer on the same network was consumed
with spyware and Trojan downloaders. Apparently it came across the network
and hit my computer. How do I know this is posssible? After repairing the
problem on my computer yesterday my other computer which like a dumbass I
turned off all Antivirus and Antispyware while doing video capture acquired
the same exact problem!!! I reenabled all the Anti-Stuff, ran viral and
spyware scans then reset the TCP/IP stack and the WINSOCK file. Again, Voila
it worked. Sorry to be so long winded but I think a lot of these problems
people are seeing is related to this. A friend that works on computers says
he's seeing a lot of the same issues. There are WINSOCK hijackers out
there. This should help a lot of people.

 

[Scott Clowers]

I tried the suggestion to reset TCP/IP with NET SHELL and although it found
and corrected some bad values, it didn't solve the problem. I did solve the
problem however. I had started to suspect the DHCP server (SonicWall Pro
230). I needed to update the firmware on the SonicWall anyway so I did that
which forced a reboot. After the reboot, the problematic computer was able
to obtain an IP Address.

 

[Rubio]

Scott,

Don't know if this has anything to do with what you're experiencing,
but I had a similar problem on an XP client and W2k server as a DHCP
server. The client box in question had previously had a reserved
address assigned to it in the DHCP server. Now the same reserved IP
had been assigned to another machine. The DHCP server clearly showed
the IP address was reserved to a different MAC address. For some
reason the DHCP server didn't accept the clients request, probably
because it tried to used the same IP address that had previously been
reserved to this machine. In any case, I removed the reserved address
and, lo and behold, everything worked. Hope this helps.

-- Rubio