Windows 2012 Active Directory Migration Issue

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dear all,

i managing windows 2008 r2 active directory domain having 1 corporate office site , 5 branch sites. in process of upgrading our active directory windows 2012. have 2 dcs in corp office , 1 dc each in branch offices, making 7 dcs in total. have demoted 1 dc in corp office , 2 dcs in branch offices , deployed windows 2012 dcs. have 3 windows 2012 dcs , reaming 4 windows 2008 r2 dcs. facing problem in 1 of branch offices while migrating windows 2012. have deployed windows 2012 server there cannot access windows 2012 dc in corp office using \\servername. username , password screen being displayed while accessing dc. have recreated windows 2012 server in branch 3 times still facing same issue. noticed while promoting 2012 server dc , got access denied error. interestingly server can access 6 other dcs except first windows 2012 dc in corp office. doubt 2 things. first related ipv6 cannot see ipv6 record corp windows 2012 dc in dns. secondly there no windows dhcp server in branch offices have cisco dhcp server. windows 2012 server being ip address assigned cisco dhcp server. please guide me how fix issue or have tool troubleshoot this. 1 thing add tried access ip address of corp windows 2012 dc still getting access denied error.

thanks
rajesh

seems smb prob on 2012. try setting following reg:

hklm\system\currentcontrolset\services\lanmanworkstation\parameters\requiresecurenegotiate

if not present, please add following registry entry in subkey: hklm\system\currentcontrolset\services\lanmanworkstation\parameters

entry: requiresecurenegotiate

type: dword

value data: 2

please remember click “mark answer” on post helps you, , click “unmark answer” if marked post not answer question. can beneficial other community members reading thread.



Windows Server  >  Directory Services



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