I already tried doing this. Genymotion refuses to start with "The Genymotion virtual device could not get an IP address." but nothing happend.
And also here Not ab
Click the Genymotion Icon and open the Genymotion Device Manager. Click on Start. One the device tries to start it will give you the error. Close the error, and click on refresh on the Genymotion Device Manager and then Start again. That solves the problem for me.