Wi-Fi Coverage Enhancement -- 2

I need assistance linking my plug-in Wi-Fi extender to my modem to improve home Wi-Fi coverage. Requirements: - Connect the Wi-Fi extender wirelessly to the modem. - Ensure stable and expanded network coverage throughout the home... (Budget: $30 - $250 USD, Jobs: Cisco, Electrical Engineering, Network Administration, Network Engineering, Troubleshooting, WiFi, Wireless, Wireless Network Security Analysis)