Access denied with windows 95

I have a SBS windows 2000 domain, with only one DC. Our lan is composed of mix win2k and win95 workstation.

Last week we reset the password for all user, and since then all our windows 95 workstation loose their communication with the server while still logged on. They reboot their machine and when they try to logon in, they received this message:
“The domain password you supplied is not correct, or access to your logon server has been denied.”

If we reboot the server, it correct the problem for about 1 day. It is very anoying.

I research technet, posted to microsoft, and no answer.

I need help.

Jasmin.