A couple XP clients not renewing IP on bootup....

[Guest contactdellthornhill@gmail.com]

Hi Everyone

 

I have a native windows 2000/XP/2003 network with about 40 clients and

two Active Directory domain controllers running 2003 server with SP2.

Domain controller 1 (DC1) is hosting DHCP, WINS and DNS and Domain

controller 2 (DC2) is hosting a backup DNS server.

 

Recently, a few of my users (3 to be exact) reported that they

couldn't access their home drives (home drive = network share to \

\dc1\home$\%username% that's mapped by the user's user account in

Active Directory). Upon further investigation, it appears that when

the computer is rebooted it loses its IP and doesn't regain it until

it gets into windows. However, since it doesn't have an IP during the

boot process, the computer cannot contact a domain controller and the

user logs on with cached credentials which is why the home drive

doesn't get mapped. Once the user is in windows, the computer gets an

IP from the DHCP server and it's like nothing ever happened.

 

I've tried replacing patch cables, reinstalling NIC drivers, changing

ports on the switch, deleting the DHCP lease for the computer on DC1

and capturing the DHCP exchange process and client bootup packet

exchange with Wireshark (everything looks fine). Nothing works.

 

The only thing that "fixes" the problem is if I give the user a static

IP. However, I'm not about to statically assign everyone an IP.

 

Currently only three people have this problem, but the issue seems to

be growing and affecting more people.

 

One last thing, we have a Netgear GSM7248 managed switch as our main

office switch. I figure it has to be a problem with either the server

or the switch.

 

Any help/ideas would be greatly appreciated. Thanks!

[Guest Newell White]

RE: A couple XP clients not renewing IP on bootup....

 

Two possible solutions:

 

1) Uncheck the 'Terminate lease on shutdown' option in DHCP

 

2) Map the drives in the user logon script in sysvol

 

--

Regards,

Newell White

 

 

"contactdellthornhill@gmail.com" wrote:

> Hi Everyone

>

> I have a native windows 2000/XP/2003 network with about 40 clients and

> two Active Directory domain controllers running 2003 server with SP2.

> Domain controller 1 (DC1) is hosting DHCP, WINS and DNS and Domain

> controller 2 (DC2) is hosting a backup DNS server.

>

> Recently, a few of my users (3 to be exact) reported that they

> couldn't access their home drives (home drive = network share to \

> \dc1\home$\%username% that's mapped by the user's user account in

> Active Directory). Upon further investigation, it appears that when

> the computer is rebooted it loses its IP and doesn't regain it until

> it gets into windows. However, since it doesn't have an IP during the

> boot process, the computer cannot contact a domain controller and the

> user logs on with cached credentials which is why the home drive

> doesn't get mapped. Once the user is in windows, the computer gets an

> IP from the DHCP server and it's like nothing ever happened.

>

> I've tried replacing patch cables, reinstalling NIC drivers, changing

> ports on the switch, deleting the DHCP lease for the computer on DC1

> and capturing the DHCP exchange process and client bootup packet

> exchange with Wireshark (everything looks fine). Nothing works.

>

> The only thing that "fixes" the problem is if I give the user a static

> IP. However, I'm not about to statically assign everyone an IP.

>

> Currently only three people have this problem, but the issue seems to

> be growing and affecting more people.

>

> One last thing, we have a Netgear GSM7248 managed switch as our main

> office switch. I figure it has to be a problem with either the server

> or the switch.

>

> Any help/ideas would be greatly appreciated. Thanks!

>