Tons of DHCP 31 Errors

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not sure going on , cant seem further. perhaps has idea on else checked

setup:
have dhcp running on dc. been working fine until few days ago. server added dnsupdateproxy , there has been dynamic registration user in place since 2011. verified user account works etc etc. scopes ad integrated , set secure. scavenging on , pretty left default settings. if dhcp scope 8 days, scavenging 7/7, set 2 day lease times, , scavenging on 1/1.

here seeing:

dhcp
pencils on records across different scopes. some records updating fine though on same scope.
records in dhcp have multiple entries same host name. (1 machine might listed 3 times 3 diff ips having pencil). on vm desktops. perhaps provisioning issue.

dns
records not in forward. guessing normal devices?
every record have looked at that exist has dynanic dns record owner , full control should in both forward , reverse. (there reverse zone everything)

sooo me looks setup correctly why multiple names in dhcp items (and there 1 nic) , why dynamic updating not working though creds there , appear on dns records?

one thing think has been noticed appears if paste in dns user account password dhcp , restart machine records update fail.  can account changed new user account? new user account able update dns records owned old user account? perhaps wrong account? if suggestion, need delete records dhcp , come on own?

also checked replication , passes. no other errors. seems hosed user account dynamic updating using?

thx
carito

hi carito,

>>some records in dhcp have multiple entries same host name.

are ip addresses of entries belong to different scope?

>>records not in forward. guessing normal devices?

i suppose normal, ptr records in reverse lookup zones.

we make test. type ipconfig /release, check address lease in dhcp server. type ipconfig /renew, check address lease in dhcp , host record in dns.

besides, may configure user account credential dns update test. 

best regards,

leo

please remember mark replies answers if , unmark them if provide no help. if have feedback technet support, contact tnmff@microsoft.com.



Windows Server  >  IPAM, DHCP, DNS



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