Machines dropp off domain

[bolt thrower]

Been having this problem for going on six months.

Have numerous sites. Main site has Win2k and Win2.3k DCs, remote sites
have same. Win2k/XP on the desktop. Cisco routers at each site hand out
addresses via DHCP -- they also hand out NetBIOS name server addresses,
DNS, etc.

Machines are dropping off the domain like flies. Daily. And at every
site. User will log in, do some work, install a program that requires a
reboot, reboot, and then be unable to log back in until we place them in a
workgroup and then re-add them to the domain -- from that client.

I've managed to determine that these machines drop as soon as they renew
their DHCP lease. I've googled some archives and it seems this may be a
dynamic DNS issue. I am Windows impaired, so I am at the end of my rope
here.

Any advice would be truly appreciate.

Thanks.

 

[Lanwench [MVP - Exchange]]

See anything in the event logs?
Usually best to have your server handle DHCP, not your router - tends to
work better for dynamic DNS registration.

 

[Cary Shultz [A.D. MVP]]

Ditto....

Cary

"Lanwench [MVP - Exchange]"

See anything in the event logs?
Usually best to have your server handle DHCP, not your router - tends to
work better for dynamic DNS registration.