I am very uncomfortable with having unknown devices connected to my network - even the one that at least identifies itself as being related to DIrectv. One came up as Directv but no further identifying information, and the other, as an unknown network device. not a duplicate to anything already on the system) and no remaining devices to account for. However, we are left with two devices, with unique MAC addresses (ie. I have been able to identify one as the Cinema Connection device, and another as a Genie Mini, by matching MAC addresses. When I successfully reconnected Directv, there were FOUR new devices that popped up immediately. I checked the device list before doing so, and left the router management software window open. Directv was the last service to be reconnected. As each one was connected, it was given a descriptive name (eg. After being unable to verify its identify, we reset the router, changed our network name and password, and began the painstaking process of reconnecting each device. We recently encountered an 'unknown network device' on our wireless network.

Unknown device on wireless network