Local IP : 192.168.1.50
External IP : 75.176.17.177

From Local:
nslookup ns1.wmstage.com.
Server:         127.0.0.1
Address:        127.0.0.1#53

Name:   ns1.wmstage.com
Address: 192.168.1.50

ping wmstage.com
PING wmstage.com (192.168.1.50) 56(84) bytes of data.
64 bytes from wmstage.local (192.168.1.50): icmp_seq=1 ttl=64 time=0.014 ms

From External:
nslookup ns1.wmstage.com
Server:         72.3.128.240
Address:        72.3.128.240#53

Non-authoritative answer:
Name:   ns1.wmstage.com
Address: 75.176.17.177

When I ping from external it hangs with no response