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NT Workstations can't login

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13 replies

by atorres

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we have a PDC and a BDC, windows 95 and NT clients connecting to the domain. just about every other week we have atleast 2 nt workstaion that can't log in and we have to restart the PDC.

Thanks:
Angel

13 replies

by dayd1

If you are using DHCP to assign addresses, 95 machines hold the address for a while before releaseing it. NT machines get a new address everytime they logon. You may need to add more DHCP licenses. When you reboot it releases the used licenses. Hope this helps.

by gutridgesj

are the pdc/bdc and workstations on the same ethernet subnet? is it the same nt workstations having the problem? when the problem occurs, can you log in to the workstations and ping the pdc/bdc? what does the event viewer say on the pdc/bdc when this happens? are the pdc/bdc running the same SP level? can other nt worksta log in besides these when the problem occurs? can the same user log in on another machine other than the worksta?

i guess i am trying to see whether it is a net problem, a user problem, or server problem.

you have to start eliminating something.

by dayd1

If you are using DHCP to assign addresses, 95 machines hold the address for a while before releaseing it. NT machines get a new address everytime they logon. You may need to add more DHCP licenses (addresses). When you reboot it releases the usedaddresses. Hope this helps.

by karsudha

If u r using DHCP, there could be a chance of DHCP giving wrong address leases or not using all the scope address. Bcoz DHCP stores the database in two places one is in DHCP.mdb file and registry. if these two are not same there could be problem with addressed leasing. to solve this open DHCP administrator use the reconsile option. hope this will help u.

by lintadsl

Have you remove the machine name from your PDC and add same name?

It may fix this problem.

Good Luck.

by atorres

Yes, I've tried it but no luck. I've even removed it from domain to workgroup and back to domain and it still didn't work.

Thanks:

by green lantern

First - every comment about lease times being different for Win95 and Windows NT machines is absolutely wrong. Lease time is set by the DHCP server not the client.

Second - You don't give enough information to work with.
What protocols are you using?
Are the NT workstations always the same ones or do they vary?
Is there a router or firewall involved?
What, besides it works, prompted you to reboot the PDC to get a temp fix?

ralph

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