We have been happily running 2 seperate networks with 100-130 machines all connecting to a Server running windows Server 2003 SP2. We have now had the need to move about 50+ pcs from one network on to the other. This was all going swimmingly until;
while attempting to connect a PC to the server i got a message saying something to the affect of the sctive directory could not obtain a unique identifier and was therefore unable to proceed joining the domain. The server seemed to then immediately loose speed and become very unresponsive after a reboot it was ok for about 1/2 a day until i switched over a few more machines and then the same again.
In the servers event logs i have some SAM errors at these times:-
1st error: Even ID 16645
The maximum account identifier allocated to this domain controller has been assigned. The domain controller has failed to obtain a new identifier pool
Followed by a DHCPServer error event id 1059
The DHCP service failed to see a directory server for authorization.
In the research i've done its suggest this is a problem with the RID role and that i need to adjust the RID Block Size in the registry, but if so then no one mentions what it should or could be adjusted too....
Please help
As at the moment i have to turn off some machines and reboot the server to restabilise the network
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Been looking about for solutions to this and starnge networking issues. And had been advised to install Server 2003 SP1 support tools and run a DCDiag and Netdiag.
They are showing some falures here are their outputs, please someone help as the network just plane dies as soon as any attempt to add something to Active Directory occurs.
Files for each test attached due to lenght of post
This problem turned out to be:
We had a previous server that died that was acting as a secondary DC and from what i can guess was the schema master
Despite manually removing all refences in DNS, Active Directory etc, we needed to follow microsofts steps here:
http://support.microsoft.c
But also found the smae but more detailed version here:
http://www.petri.co.il/sei
And after which i could then succesfully join pcs to the doamin, and when running DCDiag tests the Rid manager now showed as having availible Rids and passed its tests
Wahoooo
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by: psantiangeliPosted on 2009-06-02 at 13:22:58ID: 24531121
hi
have a look here:
http://support.microsoft.c