I had an issue here with DNS entry. When a user vpn or internally connect into the server and get an IP address from DHCP for example they get 192.168.1.159. But when we want to sync or connect the client pc from the server using a third party software and cant get the IP address. The IP that the software recognise from the client is 192.168.40.170 instead of the DHCP range.
When i try to check the DNS entry, i found out that there is an IP 192.168.40.x record as "same as parent" entry. What is wrong with the DNS actually?