Domain member server with 2 network cards

Hi

I have a domain member server SRV01 with 2 network cards:

Domain network card:

ip: 192.168.15.60

mask: 255.255.255.0

dns: 192.168.15.2 (DC)

External network card:

ip: 10.10.10.20

mask: 255.255.255.255

gateway: 10.10.10.1

dns: 10.10.10.1

The issue is that when i want to ping the domain computers by they name it's going through the external card and it's fail. To resolve the name it is using dns 10.10.10.1 instead 192.168.15.2. What should i change to made it working?