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Moved logonserver, lost domain

I removed my backup server (server02) from the subnet it was serving to repair a bad disk. The workstations on that subnet show logonserver=server02 , and the only available server is server01 on a different subnet. How do I get the workstations to find the main server in the interim? When logging on , they now complain the the domain is not found. Server01 is found in dns, and the alternate dns server is specified as server01. Before I installed this backup server, all machines on the subnet used the main server by default.
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dphantom
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Your workstations need to be on the same subnet as the DC or have a route defined to that DC.  Yours, evidently does not.  That is why when you removed the DC, those users could no longer find the domain.  Fix that and you should be fine.  Do you have multiple sites set up in AD Sites and Services?
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Darius Ghassem
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I moved the backup server into the default site and deleted the alternate site. It still can't find the domain on login.
I also changed both subnet properties to use the same site (default-first-site).
sites.jpg
How exactly did you remove server02 and how did you put it back.  You said a bad disk.  Does this mean you had to reinstall the OS, or just shut down the server to replace a hard drive in a mirror or raid 5?
Change the srv records in DNS so the new dc has the lower priority.
I found the problem. Somehow, dns on the workstation I was trying to log into was pointing wrong.
That is why I said to make sure you DNS was pointing to Server01 it is a common mistake or look over.
I changed the remote subnet dhcp params to point to the server01 for dns.
I rebuilt the server02 RAID (data drive, not the boot partition) and moved it into the primary (server01) server room, and changed its ip to a local ip, so that I can restore the data in the high-speed local environment from the primary DC (remote subnet is over T1).

But I would like to know exactly what the proper steps to pulling the server out of the remote subnet to run temporarily on the master subnet should have been, to avoid the problems I had (or any other problems)?

Is there any problem having both servers running temporarily in the local (master) subnet?
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