Hyper-V Problem with Internet Network

The machine have this configuration and software installed:

• DNS
• AD-DS
• SQL SERVER
• SHAREPOINT
• DEV TOOL

The VM have a external virtual switch.

This is the VM's ipconfig

Windows IP Configuration

   Host Name . . . . . . . . . . . . : DEV
   Primary Dns Suffix  . . . . . . . : dominio.local
   Node Type . . . . . . . . . . . . : Mixed
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : dominio.local
                                       lan

Ethernet adapter Ethernet 2:

   Connection-specific DNS Suffix  . : lan
   Description . . . . . . . . . . . : Microsoft Hyper-V Network Adapter #2
   Physical Address. . . . . . . . . : 00-15-5D-21-98-07
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::a9f0:a026:95f2:6bf%16(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.77(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Monday, November 24, 2014 10:35:13 PM
   Lease Expires . . . . . . . . . . : Monday, November 24, 2014 10:45:14 PM
   Default Gateway . . . . . . . . . : 192.168.1.254
   DHCP Server . . . . . . . . . . . : 192.168.1.254
   DHCPv6 IAID . . . . . . . . . . . : 369104221
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1B-97-C9-62-00-15-5D-21-98-01
   DNS Servers . . . . . . . . . . . : 127.0.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

This is my client's ipconfig

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Avancle
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Mixed
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : lan


Ethernet adapter vEthernet (Realtek RTL8723AE Wireless LAN 802.11n PCI-E NIC Virtual Switch):

   Connection-specific DNS Suffix  . : lan
   Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter #3
   Physical Address. . . . . . . . . : 24-0A-64-B6-5E-9F
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::5950:6ca9:4cc1:69ff%15(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.70(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : lunedì 24 novembre 2014 20:35:32
   Lease Expires . . . . . . . . . . : lunedì 24 novembre 2014 22:50:32
   Default Gateway . . . . . . . . . : 192.168.1.254
   DHCP Server . . . . . . . . . . . : 192.168.1.254
   DHCPv6 IAID . . . . . . . . . . . : 606341732
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-A9-E2-B1-8C-89-A5-0D-AF-00
   DNS Servers . . . . . . . . . . . : 192.168.1.254
                                       62.101.93.101
                                       83.103.25.250
   NetBIOS over Tcpip. . . . . . . . : Enabled