Mesh Wi-Fi or wired access points?

In a mesh system, several radio nodes connect to each other, usually over the same radio technology used to reach end devices, or over a separate backhaul band. A single main node connects to the wired network, and every other node relays the connection to the next over radio – without laying additional network cable.

With wired access points, each individual access point connects to the central network over its own network cable, usually powered through the same cable (PoE, Power over Ethernet). Every access point therefore has its own, full connection to the network, regardless of how many other access points are distributed through the building.

Every radio hop between two mesh nodes generally shares the same radio technology also used to connect end devices, unless a separate backhaul band is present. That means a device connected to the actual network across two or three nodes shares the available bandwidth across every one of those hops – usable speed drops noticeably with distance from the main node.

Wired access points do not have this problem: each access point connects directly to the network at full bandwidth, regardless of how far it is mounted from the central network cabinet. For applications that depend on consistent bandwidth, such as video streaming or several users active at once, that is a decisive difference compared with a mesh system spanning several hops.

In a warehouse or production area where staff carry handheld scanners through several zones, or with IP telephony where calls must not drop while walking, clean roaming between access points matters – the device needs to hand off from one access point to the next without interruption. Centrally managed, wired access point systems are built for this kind of roaming and coordinate the access points with each other.

Mesh systems can offer roaming too, but struggle more when radio capacity is also needed to connect the nodes to each other – in environments with many mobile devices and little tolerance for dropped connections, that is a risk worth knowing about before deciding.

In older or heritage-protected buildings, laying new network cable is often not straightforward – walls cannot be opened without restrictions, cable ducts were never planned for, and any structural change may need approval. In such cases, a mesh system is often the only practical solution because it needs no additional cabling.

Where cable routes are possible, maintainability and predictability favour wired access points: each access point can be powered and networked individually over PoE, with no separate power supply needed on site, and a failure usually affects only that one access point, not the radio link between several nodes. The instinctive fix for poor coverage – 'just add another mesh node' – often does not solve the actual problem: extending the radio chain further can lower bandwidth at the nodes further down the line instead of genuinely improving coverage.