IPCONFIG /RELEASE not working

  • Thread starter Thread starter JFG
  • Start date Start date
J

JFG

Hi,

I am trying to get my computer at work (AMD 2G running
Win XP) to release the IP assigned by the Linksys DSL
router. However, everytime I run the command
ipconfig /release, the same ip address still appears and
subnet mask. It is never released. The TCP/IP properties
for this computer is set for acquiring an IP and DNS
server address automatically through DHCP. I can access
my work's shared network directories fine, so I don't
believe it is the network card. Anyone have any idea what
is preventing me from releasing the IP address? Thanks!

JFG
 
Hi,

It sounds like ipconfig /release is working as it is supposed to.
Immediately after releasing the IP address, XP will try to renew it again
with the DHCP server. As a result, you will see the same IP come back
again. The only way to prevent this would be to assign a static IP address
in the TCP/IP properties or to run ipconfig /release with the network cable
unplugged. I'm not sure what your ultimate goal is - are you trying to
make the address available for someone else to use?

If you are trying to get the DHCP server to give you a different IP
address, it most likely won't. It will give you the same IP address over
and over as it remembers the physical (Ethernet) address of your network
card. When requesting a new IP it will give you the same one you had
because it sees that is the IP address it gave your machine previously.

Best regards,
Michael Platts, MCSE
Microsoft Product Support

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