To log in to the Wavlink router, there are two ways available which are through the web browser and the WiFi app. Both processes require accessing the login window by using the web/IP address in the first one and installing the app in the second method. So, in any case, if you fail in the first login method through the web portal, choose another method. That is the Wavlink router login through the WiFi app on your networked smartphone. Take your preferred mobile from an Android or iOS and launch its app store first. Install the latest and official app from the list and permit your device to install that. 

Then, tick mark the app’s terms and conditions and access the login window on the next page. There you will be prompted to insert the username and password of the Wavlink router that must be the default. As you click on the log-in button after entering the username and password, you will succeed in completing the login process.