I had installed virtualbox 4.2.2 in Windows 7.

My Computer Name is: MY-PC
My IP address (using ipconfig /all command) is: 192.168.1.101
My IP is dynamic and I set DNS to google dns (8.8.8.8)

When I ping MY-PC, I got this result:

Pinging MY-PC [192.168.56.1] with 32 bytes of data:
Reply from 192.168.56.1: bytes=32 time<1ms TTL=128
Reply from 192.168.56.1: bytes=32 time<1ms TTL=128
Reply from 192.168.56.1: bytes=32 time<1ms TTL=128
Reply from 192.168.56.1: bytes=32 time<1ms TTL=128

My virtualbox was not running and I expected the ip adress of MY-PC is 192.168.1.101, not 192.168.56.1

Then I run command: nbtstat -a MY-PC and I got this result:

VirtualBox Host-Only Network:
Node IpAddress: [192.168.56.1] Scope Id: []

           NetBIOS Remote Machine Name Table

       Name               Type         Status
    ---------------------------------------------
    MY-PC          <00>  UNIQUE      Registered
    WORKGROUP      <00>  GROUP       Registered
    MY-PC          <20>  UNIQUE      Registered

    MAC Address = 08-00-27-00-60-B3


Local Area Connection:
Node IpAddress: [0.0.0.0] Scope Id: []

    Host not found.

Wireless Network Connection:
Node IpAddress: [192.168.1.101] Scope Id: []

           NetBIOS Remote Machine Name Table

       Name               Type         Status
    ---------------------------------------------
    MY-PC          <00>  UNIQUE      Registered
    WORKGROUP      <00>  GROUP       Registered
    MY-PC          <20>  UNIQUE      Registered

    MAC Address = 94-0C-6D-E5-6D-5D

So it seems virtualbox caused this problem. I want to know how to change back my Computer Name's ip address to 192.168.1.101 (or any ip address that set by my internet connection)?