NETGEAR EX3700 Setup Guide: Installation and Troubleshooting

The NETGEAR EX3700 AC750 WiFi Range Extender is designed to extend an existing wireless network into areas where the WiFi signal is weak. Proper placement and configuration can help improve connectivity for devices such as laptops, smartphones, smart TVs, and tablets.

This guide explains how to prepare your EX3700, connect it to your router using a web browser, complete the initial configuration, and troubleshoot common setup problems.

Before You Set Up Your NETGEAR EX3700

Before beginning the installation, make sure you have the following:

• Your existing WiFi router is powered on and working correctly.
• You know your router’s WiFi network name (SSID) and password.
• Your NETGEAR EX3700 extender is plugged into a working power outlet.
• You have a smartphone, tablet, laptop, or desktop computer with WiFi capability.
• You can access the extender’s setup network during configuration.

For best results, initially place the extender near your router. After setup is complete, move it to a location where it can still receive a reliable signal from the router while providing better coverage in the area you want to reach.

How to Set Up the NETGEAR EX3700 Using a Web Browser

Step 1: Power on the extender

Plug your NETGEAR EX3700 into a power outlet near your router. Allow the extender to start up and check its LEDs before continuing.

Step 2: Connect your computer or phone to the extender

Open the WiFi settings on your computer or mobile device. Look for the extender’s setup WiFi network and connect to it. If prompted, follow the instructions provided with your extender.

If you are using a computer with an Ethernet port, a wired connection may also be useful where supported by the device and setup process.

Step 3: Open the extender setup page

While connected to the extender’s setup network, open a web browser and enter mywifiext.net in the address bar. Follow the on-screen instructions to begin the setup process.

Important: Mywifiext.net is a local setup address used to access compatible NETGEAR extenders. It may not open when your device is connected to the wrong WiFi network. If the page does not load, see the troubleshooting section below.

Step 4: Select your existing WiFi network

Choose the WiFi network you want the EX3700 to extend. Enter the existing router’s WiFi password when prompted, making sure that the password is entered correctly.

Step 5: Configure the extended network

Follow the setup wizard to configure the extended WiFi network. Depending on the options presented, you may be able to use a suggested network name or customize the extended network’s name.

Review the security and network settings shown on the screen, then continue through the wizard.

Step 6: Complete setup and reconnect your devices

Wait for the extender to apply the configuration. Once setup is complete, connect your phone, laptop, or other wireless device to the extended network and check whether the connection works as expected.

If your device disconnects during setup, reconnect it to the appropriate network and follow the on-screen instructions again if necessary.

NETGEAR EX3700 Setup Image

Use the product or setup image below as a visual reference while following the installation instructions.

How to Improve Your WiFi Coverage with the EX3700

The NETGEAR EX3700 is an AC750 dual-band WiFi range extender. Its advertised combined wireless class is up to 750 Mbps across the supported bands; this is not a guarantee of actual internet speed or the speed available to an individual device.

• Dual-band WiFi: Supports 2.4 GHz and 5 GHz wireless bands.
• 802.11ac compatibility: Supports compatible WiFi devices and networks.
• External antennas: Designed to help extend wireless coverage.
• Compact design: Plugs into a wall power outlet.
• Router compatibility: Designed to work with compatible standard WiFi routers.

Actual coverage and performance depend on router placement, building materials, interference, network configuration, and the distance between the router, extender, and connected devices.

NETGEAR EX3700 Troubleshooting

Mywifiext.net is not opening

• Make sure your computer or phone is connected to the extender’s setup network.
• Check that the extender has finished starting up and is powered on.
• Enter mywifiext.net directly into the browser’s address bar rather than a search field.
• Temporarily disconnect from other WiFi networks or disable mobile data on your phone if it is interfering with the setup connection.
• If the setup page still does not open, consult the extender’s documentation for the correct local access method and reset procedure.

The extender cannot connect to my router

• Confirm that the router is switched on and that its WiFi network is available.
• Check the selected network name and password carefully.
• Move the extender closer to the router during the initial setup.
• Restart the router and extender if necessary, then try the setup process again.

The extended WiFi signal is weak

• Move the extender to a location where it receives a stronger signal from the main router.
• Avoid placing it behind large metal objects or in areas with substantial physical obstructions.
• Check the extender’s indicator lights and follow the product documentation to interpret them.
• Test the connection again after changing the extender’s location.

My devices connect, but internet access does not work

• Check whether the internet works when your device connects directly to the router.
• Confirm that the extender completed its configuration successfully.
• Reconnect your device to the intended extended network.
• If the issue persists, review the router’s network settings and the extender’s connection status.

Frequently Asked Questions

How do I access the NETGEAR EX3700 setup page?

Connect your computer or mobile device to the extender’s setup network, open a browser, and enter mywifiext.net in the address bar. The local setup page may not be accessible if you are connected to another network.

Can I use the EX3700 with an existing WiFi router?

The EX3700 is designed to extend a compatible existing WiFi network. Successful configuration depends on the router’s settings and wireless compatibility.

Where should I place my EX3700 extender?

Start by configuring the extender near your router. After setup, move it toward the area with weak coverage while ensuring it can still receive a reliable signal from the router.

Will the EX3700 provide the full advertised 750 Mbps speed?

Not necessarily. The AC750 rating describes the device’s combined theoretical wireless class, not a guaranteed internet speed. Actual throughput depends on several network and environmental factors.

Should I reset the extender if setup fails?

A factory reset may help if the extender has an incorrect or unknown configuration, but it erases its current settings. Try the basic troubleshooting steps first and follow the manufacturer’s instructions before resetting it.

Need Help with NETGEAR EX3700 Setup?

If you have followed these instructions and still cannot configure your extender, independent technical support may help you diagnose setup, WiFi connectivity, or network configuration problems.

Phone: 1-937-315-7751
Email: support@mywifiext-us.net

Mywifiexttnet provides independent technical support and is not affiliated with or endorsed by NETGEAR unless explicitly stated otherwise.