default server: unknown

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hello,

we have additional domain controller in remote site, , there power failure on there , server keep shout down because of that. users start complain not able ips dhcp, restart dhcp , work fine, days, if ping server name no replay, server ip fine, tried nslookup result default server: unknown, if restart server, server name ping fine and nslookup work after while same issue happen again.

on dns server, dc ip listed in interfaces, , on zones servers name listed also.

ipv6 disabled.

in dns have lots of zones , reverse zone also, should crate record in revers lookup zone?



hi dns resolvation,

in addition above, may check if re-install nic driver in dns server , run ipconfig/flushdns on client , dns.exe/clearcache on dns server help.

best regards,

anne

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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