If you have any difficulty in setting up the range extenders try to keep it on factory default setting. There are few reason you may encounter-
* If you are getting any intermittent connections
* If you are trying to install the range extender as you got trouble doing it with set up software.
* You are unable to access the setup of your range extender
The LED is not blinking.
So ,with all the above condition if you have requirement of putting your extender on default factory setting then create a backup of your extenders device configuration and restore to avoid configuration process.
* You can access the setup page online.
* Click Management tab and click on Backup Configuration.
* Then Save the all settings.