In any case, if you start facing wifi.wavlink.com not working all of a sudden, try checking the entire network. Check the router’s advanced settings if the web management portal is accessible to you. If that is not, then replace the router’s placement and move it closer to the extender. Also, remove the electrical and metallic appliances from the router and extender location. This point will help your extender to avoid signal interruptions. If the working error still persists, power cycle the router and plug it in later after some time. But, you must prefer to change the power socket while plugging it in this time as there can be a power supply error in that socket. In another troubleshooting tip, you can reset the router and configure it again. Doing so will discard the working error and the older configured settings as well.