SRV records missing under - msdcs zone->dc->tcp. Machines unable to join domain
i upgraded 2003 ad 2012. s , can see ingle domain single forest structure 8 sites , 17 dcs. demoted old 2003 dcs structure except 1 old 2003 dc. n/w consists of 16 - 2012 dcs , 1-2003 dc. when shut down old 2003 dc , no new machines added domain, saying ad domian controller not found. on thorough check found inside msdcs zone->dc->tcp, kerberos , ldap entry old 2003 dc only, no other dcs listed here. how can solve issue , safely demote old 2003 dc
hi,
i hope dc's single homed , make sure "register connection's addresses in dns" check box not cleared. how dns settings configured in 2012 dc's?
try:
ipconfig /flushdns
ipconfig /renew
ipconfig /registerdns
restart netlogon
you may try restarting netlogon , dns service on dc recreate missing srv records. verify dc trying register correct records. this, stop "netlogon" service on dc , delete "netlogon.dnb" & "netlogon.dns" fiies located in %systemroot%\system32\config folder . start netlogon service. verify "netlogon.dns" file contains correct srv records & verify these records have been updated in dns.
troubleshooting srv record registration
if still face issue, post ipconfig /all 2003 dc , few 2012 dc's proceed further.
regards,
rafic
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Windows Server > Directory Services
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