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
My VirtualBox Version:5.2.22, after those step ,solved my problem. Hope it helps you too.
Step 1: Find your emulator network adapter
Step 2: Open Global Tools
Step 3: change IP of your device then apply
Step 4: Click DHCP server tab
Step 5: Change Server Address and Address Bounds depending on your Wifi router then apply
Step 6: Start your device from Genymotion