I'm sorry about the issue. Is this a new extender? Or was it working fine previously?
What's the exact model of your Linksys N300 Wi-Fi range extender, such as RE3000W?
What's the model of your internet modem / router device?
Do you have a Windows or Mac computer, if any?
Do you also have a tablet or smartphone?
Please reply at the box below. Thank you,
Please also check at the back / bottom of your Linksys N300 Wi-Fi range extender device for the H/W (Hardware) version, such as 1.0, or 2.0, or 1.1, or 2.1, etc.
What's the make / model of your computer, if you have one?
Please type at the box below, then click on the Send button below to communicate with me, so I can help. Thank you,