How to set up and configure a wireless access point (WAP) to extend Wi-Fi coverage in your office

Network & Internet KB-529

Summary

This guide helps you troubleshoot and resolve: How to set up and configure a wireless access point (WAP) to extend Wi-Fi coverage in your office. Follow the steps below to fix the issue.

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Common Causes

A wireless access point (WAP) is the most reliable way to eliminate Wi-Fi dead zones and extend coverage across your office or home business. Unlike a standard router, a dedicated WAP is designed to handle many simultaneous connections and can be positioned exactly where coverage is needed. This guide walks you through planning, installing, and configuring your new access point for optimal performance.

Before You Begin

Take a few minutes to plan your installation. A little preparation prevents most common issues.

Identify dead zones: Walk through your office with a laptop or phone and note where the Wi-Fi signal drops out or performs poorly.
Choose a central location: Position the WAP in a spot that has an existing Ethernet run back to your main router or network switch. Ceiling or high wall mounts generally provide the best coverage.
Check your cabling: You will need an Ethernet cable (Cat5e or better) running from your router or switch to the location where the WAP will be installed.
Note your current Wi-Fi settings: Have your current network name (SSID) and Wi-Fi password handy so you can match them on the new access point.

If you do not have an Ethernet cable run to your desired location, consider a powerline adapter kit or hiring a cabler to install one. Wireless mesh systems are an alternative, but a wired WAP will always deliver stronger, more reliable performance.

What You Will Need

A wireless access point (brands such as TP-Link, Ubiquiti, Netgear, and ASUS are commonly used)
An Ethernet cable (usually supplied with the WAP)
A computer, tablet, or phone for configuration
Access to your existing router or network switch
Your current Wi-Fi network name (SSID) and password

Physical Installation

Power down the WAP before connecting any cables.
Connect one end of the Ethernet cable to a free LAN port on your router or network switch.
Connect the other end of the Ethernet cable to the WAN or uplink port on the WAP.
If the WAP uses Power over Ethernet (PoE), plug the supplied PoE injector between the switch and the WAP, or connect the WAP directly to a PoE-enabled switch port.
Mount the WAP on the ceiling or wall using the included bracket, or place it on a flat, elevated surface if a mount is not practical.
Power on the WAP and wait one to two minutes for it to fully boot up.

Do not place the WAP inside a cupboard, behind metal objects, or near microwave ovens. These obstructions significantly reduce signal range and performance.

Initial Configuration

Most access points are configured through a web browser or a dedicated mobile app. The exact steps vary by brand, but the general process is the same.

Connect to the WAP: Either join the default Wi-Fi network broadcast by the new access point (check the label on the device for the default SSID and password) or connect your computer directly to the WAP using an Ethernet cable.
Find the configuration URL: Look on the bottom or back of the WAP for a sticker showing the default management address, such as 192.168.0.1 or tplinkwifi.net. Type this address into your web browser.
Log in: Enter the default username and password (commonly admin / admin). You will be prompted to change these on first login.
Run the setup wizard: Most WAPs offer a quick setup wizard that walks you through the essential settings.

Configuring Wi-Fi Settings

To make roaming seamless, configure your new access point to broadcast the same network name and password as your existing router. Devices will then automatically switch between access points as you move around.

In the WAP configuration page, navigate to Wireless Settings or Wi-Fi Settings.
Set the SSID (Network Name) to match your existing Wi-Fi network exactly.
Set the Security option to WPA2/WPA3-Personal (or WPA2-PSK if WPA3 is unavailable).
Enter your existing Wi-Fi password in the Password or Pre-Shared Key field.
Set the Channel manually if possible. Choose channel 1, 6, or 11 for the 2.4 GHz band, and a non-overlapping channel for the 5 GHz band. Avoid using "Auto" if you have multiple access points, as this can cause interference.
Repeat the above steps for each Wi-Fi band your WAP supports (2.4 GHz and 5 GHz).
Click Save or Apply to commit the changes.

If your existing router also broadcasts the same SSID, you may want to disable Wi-Fi on the router and let the WAP handle all wireless traffic. This avoids interference between overlapping networks.

Optimising Performance

Once your WAP is online, a few quick tweaks will deliver the best possible coverage.

Reduce Interference

Keep the WAP away from cordless phones, baby monitors, and Bluetooth devices.
If you have multiple WAPs, place them on different non-overlapping channels.
Disable legacy speeds (such as 802.11b) under Advanced Wireless Settings to improve overall throughput.

Adjust Transmit Power

Set the transmit power to High for open-plan offices.
Set it to Medium or Low in smaller spaces where multiple WAPs overlap, to prevent devices from "sticking" to a distant access point.

Enable Band Steering

If supported, enable Band Steering in the WAP settings. This encourages dual-band devices to use the faster 5 GHz network where possible.

Troubleshooting

Devices Cannot See the New Wi-Fi Network

Confirm the WAP is powered on and the Ethernet link light is active.
Verify the SSID is being broadcast by checking the Wireless Settings page.
Try restarting the WAP by unplugging power for ten seconds.

Wi-Fi Works Near the WAP but Drops Out Elsewhere

Reposition the WAP to a more central location.
Check for physical obstructions such as metal filing cabinets, concrete walls, or mirrors.
Consider adding a second access point for larger offices.

Slow Speeds on the New Network

Run a speed test while connected via Ethernet to confirm your internet connection is performing as expected.
Check the WAP's System Log or Status page for high interference or client counts.
Update the WAP firmware through the System Tools or Firmware Upgrade menu.

Devices Stay Connected to a Weak Signal

Enable Minimum RSSI or Roaming Assistance if your WAP supports it. This kicks devices off when the signal becomes too weak, prompting them to reconnect to a stronger access point.

Updating Firmware

Manufacturers regularly release firmware updates that improve stability, security, and performance.

Log in to the WAP configuration page.
Navigate to System Tools, Administration, or Firmware Upgrade.
Click Check for Updates or download the latest firmware from the manufacturer's website.
Follow the on-screen prompts to upload and apply the firmware file.
Do not power off the WAP during the update. The device will usually reboot automatically when complete.

Schedule firmware updates during off-peak hours to minimise disruption, and always back up your WAP configuration before applying major updates.

When to Seek Further Help

If you have followed the steps above and are still experiencing issues, it may be worth contacting your WAP manufacturer's support team or a qualified network technician. Persistent connectivity problems can sometimes indicate cabling faults, hardware failures, or interference sources that require specialised equipment to diagnose.

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