QueryMACAddresses – retcode PHYSICAL_IF_IOCTL_OPENERROR Description The Engineering team has not fully understood why this error occurs. We may be issuing commands to a get MAC address and link speed to virtual adapters where they are not supported. But if the customer is able to see all attached network interfaces and their MAC addresses in the… Continue reading QueryMACAddresses – retcode PHYSICAL_IF_IOCTL_OPENERROR