macOS and Linux
From Genymotion Desktop 3.3 onward, it is possible to use QEMU instead of VirtualBox. While this is not recommended on Windows, QEMU has shown better compatibilty and performances on Linux and macOS.
This error means that VirtualBox DHCP server took too long, or failed, to assign an IP address to the device. It is usually caused by the following:
You are trying to run Genymotion Desktop in a virtual machine
Genymotion Desktop has been designed to run in a physical environment, not in a virtual machine. For this reason, Genymotion Desktop will not work if run in a Windows, Linux or macOS VM.
For more details, please refer to Can Genymotion Desktop run in a virtual machine?
Hyper-V is known to cause various issues with Genymotion when using VirtualBox hypervisor. We recommend turning it off when running Genymotion. See Genymotion Destkop and Hyper-V.
VPN and Firewalls
VPN and Firewalls may interfere with VirtualBox. See:
Power management (Laptops)
This error can be caused because VirtualBox took too long to allocate an IP to the device. On Laptops and Notebooks, this may happen if you are in "Save Battery" power mode. To avoid this, make sure to set your power mode to "Performance" and plug the AC power in.
Please note that virtualisation is CPU-intensive and may drain your battery.
Laptops with discrete GPU (Windows)
Some laptops have a discrete NIVIDIA or AMD GPU alongside an Intel iGPU. This type of hardware is known to cause issues on Windows systems.
To fix this, you need to force Genymotion to use the discrete, high-profile GPU. See How to force Genymotion Desktop use the high performance discrete GPU on laptops?
This error may occur on hardware which does not meet Genymotion Desktop requirements.