Boost Your Wi-fi Network. TP-Link range extender connects to your router wirelessly, strengthening and expanding its signal into areas it can't on its own. The device also reduces signal interference to ensure reliable Wi-Fi coverage throughout your home or office. Press the WPS button on your router and the Range Extender button on your 850RE within 2 minutes to easily connect to the network. Once connected with an existing router, you can simply unplug and plug the TL-WA850RE back in a location for the best signal quality and coverage in your house, without needing to configure the extender again. The TL-WA850RE single Ethernet port allows the Extender to function as a wireless adapter to connect wired devices like Blu-ray players, gaming consoles, DVRs and Internet TVs. At the same time, the device can share the wireless network as well.