Hi all, Ours is a setup of 30 Windows multi master DCs currently running with different servers (windows 2003 , Windows 2008 , Windows 2008 R2) . Till now it is running there is no issues with replication among the Winodws servers. Now recently i joined a Samba4 DC in the network as a replicating multi master DC. Everything goes fine for few hours but suddenly i got errors in Windows DC. The Windows 2008 R2 servers can replicate only among themselves and it cannot replicate to Windows 2003 and Windows 2008 servers and Samba server. The error code and solution is given as http://support.microsoft.com/kb/837932 But none of the solutions proposed in this page works. Has anybody comes across this issue before?I dont know whether this issue has arised really due to Samba4 Dc or how it would have arised. Infact i dont want a solution for Windows DC, but want to know whether Samba can be the root cause for this. Because till the moment i start the samba server , this error was not there. This has really became big headache and somebody kindly throw some lights on this issue. -- Regards., Prema S CDAC Chennai