Rejoining the domain

[Guest]

I have several computers running off a Microsoft Exchange 2003 server.

One of the computers was connected to the domain incorrectly and now it
crashes and crashes the server due to security problems. The server thinks
the computer is trying to illegally log onto the server so it shuts down that
computer and then the server crashes.

When I unhook the computer from the server, all is fine. In other words, I
have isolated the problem.

I have heard that I cannot rename this computer and correctly rejoin it to
the domain unless I format the hard drive on the affected computer and
reinstall everything. Not a pleasant option.

I know NOTHING about networks so if I have not given you enough information,
please let me know.

 

[Malke]

I have several computers running off a Microsoft Exchange 2003 server.

One of the computers was connected to the domain incorrectly and now it
crashes and crashes the server due to security problems. The server thinks
the computer is trying to illegally log onto the server so it shuts down that
computer and then the server crashes.

When I unhook the computer from the server, all is fine. In other words, I
have isolated the problem.

I have heard that I cannot rename this computer and correctly rejoin it to
the domain unless I format the hard drive on the affected computer and
reinstall everything. Not a pleasant option.

I know NOTHING about networks so if I have not given you enough information,
please let me know.

1. At the server, back up any relevant data for this user and delete the
user account.

2. At the workstation, log onto the local Administrator account and go
to the System applet in Control Panel and click on Computer Name. Change
the workstation to a Workgroup which will remove it from the domain.

3. At the server, create a new user account for this user - configure
accordingly.

4. At the workstation - still in the local Administrator account - join
your computer to the domain again.

5. Make sure your DNS settings are correct at both the server and the
workstation (server looking only to itself for DNS with forward lookups
created and workstation looking only to the server for DNS).


Malke

 

[Guest]

I have never heard of a server behaving so drastically - are you sure no
viruses are involved here? I would run a thorough scan on both server and
client first. Then before doing anything as drastic as reformatting the
computer I would:

On the client computer:
Log on with Administrative rights
Change the computer name and make it part of a workgroup (and make the
workgroup name different from the domain name).
Reboot.

On the server:
Go to Active Directory Users & Computers
Go to the Computers node and delete the account for the previous computer
name.

On the client machine:
Join it back to the network physically. Boot it up and then attempt to
rejoin the domain.

Good luck.

 

[Guest]

Thanks for the replies. I appreciate your time.

I will let you know in a few days if this works.

 

[Chuck]

I have several computers running off a Microsoft Exchange 2003 server.

One of the computers was connected to the domain incorrectly and now it
crashes and crashes the server due to security problems. The server thinks
the computer is trying to illegally log onto the server so it shuts down that
computer and then the server crashes.

When I unhook the computer from the server, all is fine. In other words, I
have isolated the problem.

I have heard that I cannot rename this computer and correctly rejoin it to
the domain unless I format the hard drive on the affected computer and
reinstall everything. Not a pleasant option.

I know NOTHING about networks so if I have not given you enough information,
please let me know.

Do you have a local administrator account on the problem computer? If so, login
locally, with it unhooked, and join it to a workgroup. Then go to the server,
and remove it from the domain there. Finally, reboot the computer, reconnect
it, login again, and re add it to the domain.