Why doesn't Windows detect the network device I want to add to my computer?

• Make sure the device is already connected to the same network your computer is on. If this is a wired network device, make sure it's plugged into the network and turned on. If this is a wireless network (Wi‑Fi) device, make sure it's turned on and properly configured to connect to your network. If you're not sure how to do this, check the information that came with the device or go to the manufacturer's website.
• Make sure you haven't already added the device to your computer. Devices that have already been added aren't displayed in the list of devices you can connect to in the Add a device wizard.
• After you connect a new device to your network, wait several seconds for Windows to discover it.
• Make sure your network firewall isn't blocking the device from appearing in the list of devices you can add. You might need to turn on network discovery. For more information, see Enable or disable network discovery.
• Not all network devices can be added to a computer, even if you can detect the device on your network. To find out if a device is capable of connecting to your computer, check the information that came with the device or go to the manufacturer's website.
• Most network devices can only be discovered if they're on the same network subnet as your computer. If your network consists of multiple network subnets connected together, try connecting the device to the same network subnet. For more information, contact your network administrator.
• Make sure the network device has an IP address and proper network address. Most network routers assign IP addresses automatically as devices connect to the network. For more information, contact your network administrator.
• Make sure the device is configured to broadcast its presence on the network. Most network devices automatically do this. For more information, check the information that came with the device or go to the manufacturer's website.