The Wavlink web portal is a platform from where you can access a number of useful features for your device setup. You can easily get there by searching the default web or IP address of Wavlink. But, there will be some requirements to access the portal on your device that you need to collect first. Foremost of all, the Wavlink extender with its default username and password and also, the default web or IP address. More than that, your device such as a laptop, or smartphone to get on the setup portal. Your device must be compatible with the extender and its web browser must too. So, to do this, clear the cookies, caches, and malware files from your device's web browser. 

Further, your existing router must have an active internet package and its signals must be capable of reaching the extender. Once you have these you can easily access the wifi.wavlink.com setup window on any networked device. In an alternative way, you can install the wavlink WiFi app on your smartphone for the same process.