There can be several reasons as to why you need to conduct a reset on your Wavlink device:
If you are continuously experiencing slow internet speed or frequent disconnectivity then reset can help you in troubleshooting this issue.
Next, if you had changed the default password to something more personal and unique but now do not remember it then the reset can help you in regaining the access.
Further, if you had made changes in the network settings and now it is not working as per your expectations then reset is the best option. After resetting you can again configure your network.
Sometimes due to security reasons also, Wavlink Reset can be done. As the reset erases all the previous settings and brings back the device to its factory default settings.