Many users mistakenly believe that a router and an access point are the same device, but in professional environments, these concepts have a clear technical distinction. Wi-Fi access point A wireless network (WLAN) is equipment that creates a wireless network, allowing devices to connect to the internet. However, unlike a router, it doesn't assign IP addresses itself. Understanding this difference is critical for building a stable network in a large apartment or office, where a router alone may not be sufficient.
In this article, we'll take a detailed look at how this equipment operates, how to connect and configure it, and answer the most frequently asked questions about setting up a local network. You'll learn when it's really worth buying a separate access point, and when the functionality of your current router is sufficient.
Fundamental differences between an access point and a router
The main difference lies in the functional purpose of the devices. Router A router is an intelligent device that connects your local network to your provider's global network, distributes traffic between devices, and assigns them addresses. An access point acts as a "bridge," translating the already-prepared network signal into radio waves.
Access point It can't work with PPPoE or L2TP protocols directly from the provider; it requires a pre-configured internet connection at the entrance. If you connect the modem directly to the access point, the internet won't appear on any devices, as there's no one to handle authorization and routing.
However, in modern home environments, the line often blurs, as most home routers have an "Access Point" mode. In this mode, the device disables its router functions and becomes a simple signal transmitter.
⚠️ Attention: If you plan to expand your office network, do not attempt to daisy-chain two routers without setting up bridge or access point mode—this will create an IP address conflict (NAT) and crash the network.
For home use, a single powerful router is often sufficient, but in multi-story buildings or offices with thick walls, dedicated access points allow you to create a single seamless network (Roaming), where switching between coverage areas occurs seamlessly for the user.
Operating modes and equipment connection methods
There are several scenarios for using this equipment, and choosing the right mode depends on your network topology. The most commonly used mode is Access Point, when the device is connected via cable to the main router and distributes Wi-Fi in a remote room.
The second popular option is the mode client or WDS (Wireless Distribution System). In this case, the device receives Wi-Fi from the main router and distributes it further, or connects wired devices (such as a Smart TV or set-top box) that don't have their own Wi-Fi module to the network.
To connect, you'll need a patch cord (network cable). One end plugs into the port. LAN the main router, and the second one into the port WAN or LAN the device being configured, depending on its model and firmware.
What is the difference between LAN and WAN ports?
The WAN (Wide Area Network) port is used to connect to the external network (your ISP's internet connection). LAN (Local Area Network) ports are used to connect devices within your local network (computers, printers, TVs). When setting up an access point, it's important not to confuse them if the device doesn't support automatic port detection.
Modern systems such as Keenetic or MikroTik, allow you to flexibly reassign ports, turning the WAN into a regular LAN, which simplifies the physical connection of cables in complex circuits.
Step-by-step instructions for setting up an access point
The setup process requires careful attention, as a single error in one setting can result in loss of access to the device. Before beginning, make sure you know the IP address of your primary router to avoid conflicts.
First, you need to connect to the device via cable. Enter the factory IP address (often this is 192.168.0.1 or 192.168.1.1) and log in using the data from the sticker on the bottom of the case.
First, change the IP address of the access point itself. If your main router has an address 192.168.1.1, then the access point needs to be given an address in the same subnet, but different from the main one, for example, 192.168.1.2This is necessary so that you can access its settings in the future.
☑️ Setup checklist
The critical step is disconnection DHCP serversThere should only be one address-distributing router on the network (the primary router). If DHCP is left enabled on the access point, your devices will receive incorrect settings and will lose internet access.
Next, set up your wireless network. Enter a name (SSID) and password. For best compatibility, we recommend using encryption. WPA2-PSK (AES) or more modern WPA3, if all your devices support it.
⚠️ Attention: Interfaces may vary between manufacturers (TP-Link, Asus, Zyxel). Look for the "Operating Mode," "Operating Mode," or "System Settings" sections to switch between functions.
Selecting an installation location and the influence of physics on the signal
Even the most expensive equipment can't penetrate shielding materials. A Wi-Fi signal is radio waves, which travel poorly through metal, mirrors, thick concrete with rebar, and water (like aquariums).
The ideal installation location is the center of the coverage area or the geometric center of the apartment if there's only one access point. If you're extending the cable to a back room, place the device as high and open as possible, away from microwaves and baby monitors that operate at 2.4 GHz.
When installing multiple access points to create a unified network, it's important to properly position them relative to each other. They shouldn't be placed too close to each other, otherwise they will cause interference, reducing speed.
External antennas, if present, should be oriented vertically. Horizontal antenna placement changes the antenna pattern, which may only be useful in specific situations, such as signal coverage on different floors of a multi-story building.
Comparison table of characteristics
To fully understand the differences and choose the right equipment, let's look at a comparison of key parameters.
| Parameter | Router | Access point (AP) | Repeater |
|---|---|---|---|
| IP Distribution (DHCP) | Yes (main function) | No (requires primary router) | No (takes from the router) |
| Connecting to a provider | Direct (PPPoE, L2TP, DHCP) | Only via the router's LAN | Wireless from the router |
| Speed stability | High | Maximum (wired backhaul) | Reduced by 50% (usually) |
| Price | Medium / High | Average | Low |
As can be seen from the table, access point provides the best connection stability, as it receives the signal via cable, without losing half the speed on wireless retransmission, as a regular repeater does.
However, running cable (twisted pair) to the access point location can be a labor-intensive task in an existing interior, which often forces users to choose less efficient but easier to install wireless repeaters.
Wi-Fi frequency ranges and standards
Modern access points operate in two main ranges: 2.4 GHz And 5 GHzThe 2.4 GHz band has better penetration, but it is heavily polluted by neighboring networks and household appliances.
Range 5 GHz provides high speeds (especially on standards) Wi-Fi 5 (AC) And Wi-Fi 6 (AX)), but has a shorter range and is less effective at penetrating walls. For an office or apartment with multiple devices, dual-band models are preferable.
When setting up, it is recommended to separate networks (do not use the Smart Connect function) by giving them different names, for example, Home_WiFi_2.4 And Home_WiFi_5GThis will allow you to manually connect older devices to 2.4, and newer laptops and phones to the fast 5 GHz.
Channel width also plays a role. For 2.4 GHz, it's best to set it to 20 MHz to avoid interference. For 5 GHz, you can safely set it to 40, 80, or even 160 MHz, depending on the airborne noise level and your equipment's capabilities.
Why does the access point get hot?
Active data transfer and radio module operation always generate heat. If the device is hot but operating reliably, this is normal. However, if it overheats to the point of shutting down, check the ventilation openings and avoid placing it on soft surfaces (carpets, sofas).
Can I use my old router as an access point?
Yes, almost any modern router can be flashed or reconfigured to use Access Point mode. This is a great way to save money and repurpose old equipment to extend your Wi-Fi coverage.
Do I need a separate IP address for my access point?
Yes, for ease of management. Although the network will function even without a unique static IP (if DHCP is disabled), you won't be able to access its settings to change the password if the address is dynamically assigned and changes. Always assign a static IP to the same subnet as the main router.
How many devices can the access point support?
Home models typically handle 15-30 active clients reliably. Business models (such as Ubiquiti or MikroTik) can handle 50-100+ devices thanks to more powerful processors and optimized traffic queuing algorithms.