Due to the maximum gap or distance between the extender and the router device, you can face trouble. To fix the extender connection issue, place your extender device near the host router. The 10 to 15 feet distance is enough between them, not more than that.
Make sure that your extender device does not place closer to the metal or electronic gadgets because they absorb all the WiFi signals which come from the extender and router device.
To get the latest Wavlink extender software version, you will need to visit the web management page. After visiting, search for an administration option and then click on the software upgrade file. In the end, install the file and restart the extender to finish the software upgradation process.
To do the wn531g3 ac1200 setup process again early you will require to reset the extender. At the back or bottom, you see the reset button. Push that button for 10 seconds. After that, all the LEDs of the extender will turn off. Thus, it means your device is completely reset.