Business Wi-Fi and Networking: Getting It Right in 2025

Slow Wi-Fi is rarely a broadband problem. In 90% of UK office cases, the internet connection is fine — it is the network inside the walls that is letting you down.

The most common causes

• A single consumer-grade router trying to cover an entire office.
• Cheap access points on 2.4GHz only — congested and slow.
• No wired backhaul for the access points — everything on wireless mesh.
• Devices roaming badly between access points.
• Guest Wi-Fi and internal Wi-Fi sharing the same network.
• Unsupported firmware years out of date.

What a proper business Wi-Fi looks like

• Wi-Fi 6 or Wi-Fi 6E access points, positioned on a site-survey plan.
• Wired PoE backhaul to every access point.
• Dedicated management SSID for staff, separate guest SSID with content filtering.
• VLAN separation between guest, staff, VoIP and IoT devices.
• Central controller (cloud or on-prem) for updates and monitoring.

A rough guide to what it costs

• Small office (up to 15 people): 2–3 access points, PoE switch, controller — £1,200–£2,500 fitted.
• Medium office (15–60 people): 4–8 access points, redundant switching — £3,500–£7,500 fitted.
• Larger office / retail floor: 8+ access points, site survey required — £8,000+.

The one-hour Wi-Fi audit any office can do today

• Stand at each desk and check signal — you should see two APs at −67dBm or better.
• Check what firmware every device is running — anything two years old is due a refresh.
• Look at your router — if it says “TP-Link” on the front of an office router, that is a red flag.
• Check where the internet router is — cupboards and comms rooms wreck coverage.