Greetings Zeinum,
Hope you are doing well!
May you please supply more details about the LoadRunner version on the Virtual machine?
Also remember to disable the DHCP Network feature, please check this topic:
http://h30499.www3.hp.com/t5/LoadRunner-Support-Forum/IP-wizard-does-not-support-DHCP-enabled-networks/td-p/4658797#.U7Lv7fn0Ad4
May be you have it enabled on the Load Generator machine that is not giving the expected result. Also check that you are using the IP Wizard as "administrator", you can follow up these steps to disable the DHCP, only static ip address is allowed:
1. Click Start followed by Run.
2. Type command followed by Enter.
3. Type ipconfig/ all in the command prompt console and press Enter.
4. The results displayed will show you the device's current IP address, Subnet Mask and Default Gateway, also the current DNS Servers among other things.
To reconfigure the IP Address settings of a device in Windows, follow these steps:
1. Click Start followed by Control Panel.
2. Click Network Connections.
3. Locate the device you want to confiture. For instance ( Internet Protocol Version 4 (TCP/IPv4).
4. Right-click it and select Properties.
5. Under the this connection uses the following items : window, scroll to the Internet Protocol (TCP / IP)] entry and click on the Properties button.
6. Select the radio button next to use the following IP Address and enter the IP Address, subnet mask and default gateway of your choosing (use information extracted above as a reference).
7. Select the radio button next to use the following DNS server addresses and enter the DNS Server IP Addresses from the information extracted above.
Please let us know this.
Kind Regards,