GenyMotion Unable to start the Genymotion virtual

Question

When I run Genymotion, I get the following error:

Unable to start the Genymotion virtual device.

Unable to configure the network adapter for the virtual device.

Please, check the following points:
From VirtualBox, in the main parameters of software, check a network adapter "Host-only" is present. From VirtualBox, in the Genymotion virtual device parameters, check the first network interface has the type "Host-only". If no, then set this parameter manually.

How can I fix that?

Answer 1

If as me you've tried everything above (especially windows 10 users ) and nothing helped here is what eventually solved the issue. The solution was ridiculously easy but took a day to figure it out.

1. Recommended to remove host only network adapter from virtual box, to do that open virtual box File->Preferences->Network->select tab host only network adapter->remove all (no worries when you start a vm from genymotion it will create new). Now open Genymotion and try to start your virtual device. Get the error ? that's good follow second step
2. (What actually fixed the issue) Go to Control Panel->Network and Internet->Network Connections, on there you should see an Ethernet network adapter that virtual box created ( it was created automatically when you started device from genymotion), so right click on it then Properties then CHECK VirtualBox NDIS6 Bridged Networking Driver, see image attached.
3. You're done. Start your device from genymotion, should work now.

Answer 2

The number of CPUs is insufficient. Select 1 CPU in Genymotion and restart the device.