By the Maincoms engineering team, Cosham, Portsmouth. Updated 17 October 2026.
In short: Slow office Wi-Fi is usually caused by the network inside the building, not the internet line. A managed network of ceiling access points, Power over Ethernet switches and a business gateway, run from one controller such as TP-Link Omada, gives consistent coverage that can be monitored and adjusted remotely.
When staff complain that the internet is slow, the first instinct is to upgrade the broadband. Often that makes no difference, because the problem is inside the building.
The usual causes
- One router doing everything. The box supplied with the broadband is rarely designed to cover a whole office or handle dozens of devices.
- Thick walls and long buildings. Wi-Fi signal drops quickly through brick, concrete and metal. Upstairs offices and back rooms end up with a weak connection.
- Consumer extenders and mesh kits. These help at home but each adds a hop, and they cannot be monitored or managed centrally.
- Phones and guests on the same network. Without separate networks and some traffic priority, a large download can make phone calls break up.
What a managed network looks like
A business network uses ceiling-mounted access points placed where people actually work, connected by cable to a network switch. The switch also powers the access points and desk phones over the same cable, known as Power over Ethernet. A business router or gateway sits at the edge, with a 4G or 5G backup if needed.
The difference is that it is designed as one system, rather than a collection of boxes.
Why we use TP-Link Omada
We install TP-Link Omada for many of our customers because the access points, switches and gateways are all managed from one place. Omada's cloud controller, Omada Central, runs in the cloud, so there is no extra server to buy or maintain on site, and its basic tier is free.
In practice that means:
- Problems are spotted early. Alerts flag a device that drops offline, often before anyone notices.
- Changes are made remotely. A new guest network, a password change or a firmware update does not need an engineer on site.
- Coverage adjusts itself. Access points choose channels and power levels automatically to reduce interference.
- Several sites, one view. Businesses with more than one office see every site in the same dashboard.
The current range includes Wi-Fi 7 access points such as the EAP787, PoE switches for phones and access points, and routers with built-in 4G or 5G backup.
Start with a survey
The most common mistake is buying access points before checking the building. A short site survey shows where coverage is needed, how many access points it will take and whether the existing cabling is good enough.
See Wi-Fi and networking or book a site survey.
Frequently asked questions
How many Wi-Fi access points does an office need?
It depends on the building, the walls and how many people and devices use it. A site survey is the reliable way to answer it, as it shows where coverage is needed before any equipment is bought.
Is mesh Wi-Fi good enough for an office?
For small offices and buildings that are hard to cable, mesh Wi-Fi works well. Larger offices, multi-site businesses and anywhere relying on Wi-Fi calls are better served by cabled access points and managed switches.
Do we need a server to run TP-Link Omada?
No. Omada Central, TP-Link's cloud controller, runs in the cloud, so there is no controller to install on site. Its Essentials tier is free, with paid features available for larger networks.
What is Power over Ethernet (PoE)?
PoE sends power and data down the same network cable, so access points and desk phones can be installed on ceilings and desks without a separate power socket.