On systems using wired NICs, open the Properties box of the NIC assigned to Avanti and uncheck all items assigned to the NIC.  This will prevent Windows from trying to share the NIC with Avanti.  This action is not recommended for virtual NICs hosted by VMware.

For users running Avanti on a system equipped with a wired and wireless NIC, such as a laptop, assigning Avanti the wired NIC will provide more stable network performance.