# Interface Type

> Wired or wireless link between the router and the access point.

Source: https://joinnasnet.com/en/guides/nasnet-connect/choose/interface-type/
Last updated: 2026-08-14

---

## Overview

The screen is titled **Select Interface Type**, described as *"Choose the type of connection
for your trunk network"*. It appears only in **Advanced Mode** with **Router +
Access Point Mode** selected, and it asks one thing: how the two routers talk to
each other. Wired is marked **Recommended**.

The wizard checks every selected router for Wi-Fi before it offers the wireless
option. If any of them lacks a wireless interface, the wireless card is greyed
out with a **No Wi-Fi** badge and a warning listing the offending models under
the heading *"Wireless Router + Access Point Not Available"*, and you are told to pick
routers with Wi-Fi capability or use a wired trunk instead.

## Before you start

- A wired trunk needs a spare port on both devices and a cable between them.
- A wireless trunk needs both devices to have Wi-Fi *and* to share a common
  band. The band is picked on the next sub-step.

## Steps

1. Pick **Wired Router + Access Point** if you can run a cable. This is the
   recommended option.
2. Pick **Wireless Router + Access Point** only if both routers have Wi-Fi.
3. Selecting a card completes the sub-step and moves you on to **Router +
   Access Point Interface**.

## Reference

| Option | Description | Listed features |
| ------ | ----------- | --------------- |
| **Wired Router + Access Point** | High-speed cable-based trunk connection for maximum performance | Up to 10 Gbps throughput; Ultra-low latency (<1ms); Rock-solid reliability; Ideal for backbone links |
| **Wireless Router + Access Point** | Point-to-point wireless trunk for flexible deployments | No cabling required; Quick deployment; 802.11ax/ac support; Ideal for bridging buildings |

## Troubleshooting

**The wireless card is greyed out with a "No Wi-Fi" badge.** One or more of the
routers you selected has no wireless interface. The warning box underneath lists
which. Either swap in a Wi-Fi-capable model on the **Router Model** and **Slave
Router** sub-steps, or use a wired trunk.

## Related

- [Router + Access Point Interface](/en/guides/nasnet-connect/choose/trunk-interface/)
- [Router Mode](/en/guides/nasnet-connect/choose/router-mode/)