The outdated software can affect the extender’s performance, which is why the Linksys Extender software should be improved. Visit the Linksys web management page to install the software file. After going there, enter your login information. Select the software upgrade option after tapping the advanced network settings option. Install the software package right away on your computer. It will take 5 to 10 minutes to complete this. To finish the extender software upgrade procedure, update the firmware and restart your extender. 

If the errors still persist, then all Linksys WiFi Extender not working Configuration Settings must be reset. Press the Linksys extender's reset button if you want to clear all of the configuration settings. Put the hairpin in the reset button and be careful to only press it for 10 seconds. Finally, repeat the Linksys WiFi extender setup after resetting the older settings using the reset button.