I want to remove this device but I seem to be having trouble. I tried to figure out if I recognized the device, but the IP address on it did not match the IP address on any of the devices that I have. When the second network scan finished, I saw two of the unknown devices had disappeared and that one device was remaining. I also restarted the network and ran another network scan. I immediately change the password on my network and made sure that the security mode was set WPA2. After the scan, I found several unfamiliar devices connected to my network. I recently purchased Avast Premium Security on my computer and ran a network scan.