Can an Access Point Connect to Devices via Ethernet? (Explained for SMB & Enterprise Networks)
Selene Gong
In enterprise and SMB environments, wireless access points (APs) are primarily used to provide WiFi connectivity. However, many IT administrators ask whether access points can also serve wired devices through Ethernet connections. The answer depends on the type of access point and how it's deployed.
1. Access Points with Ethernet Passthrough or Downlink Ports
Some access points, especially in the enterprise segment, feature additional Ethernet ports designed for device passthrough. These ports allow a wired device—such as a VoIP phone, IP camera, or desktop computer—to connect directly to the network via the access point.
For example, many Cisco, Aruba, and Ubiquiti APs support this feature in office or hospitality deployments, where devices are often co-located with ceiling- or wall-mounted APs.
2. Bridging or Repeater Mode
In certain configurations, access points can be placed in bridge mode, allowing Ethernet-enabled devices to connect to the AP wirelessly. In this case, the AP acts as a wireless bridge, converting WiFi back into a wired signal. This is useful when pulling Ethernet cable is impractical.
However, this setup may introduce higher latency and lower throughput compared to traditional wired connections.
3. Use Cases Where Ethernet on APs Makes Sense
Hotels or Dorm Rooms: Provide one AP per room, and connect both guest devices and wired phones via Ethernet.
Open Office Spaces: Enable Ethernet passthrough for workstations close to ceiling-mounted APs.
Temporary Installations: Bridge Ethernet-only equipment (like printers or POS terminals) without cabling.
4. Limitations and Considerations
PoE Budget: If the AP is powered via PoE, ensure the switch can supply enough power for both the AP and any passthrough device.
Bandwidth Sharing: Connected Ethernet devices share the AP’s uplink, potentially reducing WiFi performance under heavy load.
Configuration Required: Some APs require enabling passthrough or bridge mode in the management interface.
Summary
Yes, many modern wireless access points can connect to devices via Ethernet, either through physical passthrough ports or by acting as a wireless bridge. This capability expands deployment flexibility, especially in environments where running new cabling is difficult.
If your AP supports PoE, consider using a PoE switch to simplify both power delivery and network connectivity.
For best results, always check the AP model’s hardware specs and software capabilities before relying on Ethernet connectivity for wired clients.
