DHCP not releasing

We have users who travel from one location to the next on a regular basis.  The user receives an IP at Location A and all is fine.  The user then goes to location B but does not receive new IP.  release/renew does not work.  Keeps the IP from location A.  Deleted IP from Win 2003 DHCP server but still keeps IP from location A.  Laptops are setup as Auto IP Auto DNS.  Location A and B are on different subnets using Superscopes.  If the user is homed at Location B same issue but with location B ip not releasing. If IP manually inputted all is fine.    
ndennyAsked:
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DonNetwork AdministratorCommented:
Try using the Scope option  002 (release DHCP lease on shutdown)
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DonNetwork AdministratorCommented:
Be sure to go to the advanced tab under scope options and under vendor class select microsoft windows 2000 options
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ndennyAuthor Commented:
Thank you for the quick reply.  Do I need to put anything in the Value or will the default 0x1 be sufficient?
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DonNetwork AdministratorCommented:
The Default
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ndennyAuthor Commented:
I've restarted the DHCP Server service and now heading to Location B.  Will report back as soon as possible.
thx
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DonNetwork AdministratorCommented:
Good luck
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ndennyAuthor Commented:
Sorry still won't give up original location ip.  I can release it which gives me the card deffault 169.x.x.x. but when I renew I get the ip from the original location.  I have to manually enter an ip for the location B.
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DonNetwork AdministratorCommented:
It may take a while for the original lease to be given up and for the new scope options to take effect. I ran into this awhile back and I think that I temporarily shortened the lease times.
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ndennyAuthor Commented:
OK thanks.  I'll do that but I won't be able to test until tomorrow.  
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ndennyAuthor Commented:
Sorry was not able to get to location B Friday.  Went today and my laptop picked up the ip of location B no problem.  Had another machine that was brought over from location A with me but it would not connect.  Ran release/renew but it retained the location A ip.  Went into NIC properties and it was set to auto retrieve ip but the DNS was set to specify and WINS also had an entry.  IPs for DNS and WINS were the correct ones.  Set DNS to auto and removed the WINS address.  Ran release/renew and the pc picked up the location B address.  Very exciting.  Took my pc over to location C plugged into network and it picked up the correct address info for location C.  Very Very exciting.  Went back to location A (HQ) and my PC would not release the IP it received at location C. I had to specify an ip to get connected.  As soon as I set it to auto it reverts back to location C ip.  Almost there.  Thanks for the link.  I will go through it and our setup tonight.
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