We have a standard domain network running server 2012.
now the problem is as follows
Any internal client when they ping is supposed to
mail.abc.com.au resolves to 192.168.4.2
Now what happens sometimes is that every morning when someone turns their PC on they might get an issue where out of blue the DNS starts to resolve to the WAN IP of our network
If i flush the DNS the issue is resolved
Has any one faced a similar issue.
And the strange part of that it happens even to the machines that were left in the office overnight s well and not only to the ones that were out of the office.
All clients get IP from DHCP server 192.168.4.3
and gives out DNS' as 192.168.4.3 and 192.168.4.4