Question : two nic card setup, one public, one local. when local is enabled, can't access via public

nic card 1 has public ip
nic card 2 has ip for private development network.

the reason i need two is so i can rdp to this machine from my location, then from here access everything i need to on the private network. no internet sharing or anything like that.

hoever, once i enable nic card 2, i lose my connection and need someone else to disable it again localy.

i have successfully done this before but since forgot the settings

any help you can provide would be greatly appreciated

thanks

Answer : two nic card setup, one public, one local. when local is enabled, can't access via public

Don't have a default gateway set on the Interna Only NIC. Usually this is the cause