Configure Networking in Hyper V

Hi,

I have a single R710 with hyper-v 2012 installed on it. 

I am managing hyper v 2012 from a windows 8 host. 

I have installed server 2012 VM.

I have 2 networks connected to the physical R710.

In virtual switch manager I have configured 2 switches. One of these switches is shared with the management OS hyper v. 

Second switch just points to the second physical NIC.

My problem is this:

When i connect the VM to the first switch it works fine. 

When i connect the VM to the second V switch (second physical NIC). The VM gets a DHCP IP address and is able to ping everything behind the FW. It just doesn't ping outside. i.e. google.com or 8.8.8.8

There are no firewall rules blocking traffic. 

Can anyone tell me what I am doing wrong?

Thanks in advance. 

Inam