The Wavlink 1200 setup is the process of configuring your Wavlink AC1200 dual-band Wi-Fi extender or router to extend and improve your wireless network coverage. It involves powering on the device, connecting your smartphone or computer to its default Wi-Fi network, and accessing the setup page through a browser using wifi.wavlink.com or the IP 192.168.10.1 to log in with the default username and password. From there you choose setup options such as Repeater Mode to boost your existing Wi-Fi signal, or use the WPS button to automatically connect the extender to your router. After setup, you can relocate the extender for better coverage and update settings like Wi-Fi name, password, and firmware.