I am new to domain controller. I just configured one Windows 2008R2 domain controller named dc1 followed by normal steps (both of dc and dns are hosted on this machine) in my Windows 8.1's Hyper-v. My win8.1 is using "Obtain an IP address automatically" and "Obtain dns server address automatically". I have also configured one client machine in Hyper-v, it can join the domain successfully and also "ping dc1" successfully.
However, both of dc1 and the client machine can't access internet, there is yellow exclamation in the network icon. Is there anything else I need to do to make the dc1 and client machine can access internet?