No Internet Connection on Hyper-V Virtual Machines

Situation

A Hyper-V virtual machine does not have an internet connection.

Cause

Some guest operation systems (for example, Windows 7 Starter 32-bit) require a legacy network adapter installed.

Solution

Add a legacy network adapter to your virtual machine.

To do this, proceed as follows:

1. Open Hyper-V Manager.
2. Switch off the required virtual machine.
3. Click Add Hardware, then select Legacy Network Adapter.

4. Click Add.
5. Select a virtual switch for your legacy network adapter.

6. Click OK.