In short
Office WiFi usually keeps dropping for one of six reasons: too few access points for the floor area, access points linked over the air instead of over a cable, devices clinging to the wrong access point, crowded radio channels, capacity running out at busy times, or a fault in the wired network underneath.
The pattern tells you which one you have. Drops that follow a place are coverage or interference, drops that follow the clock are capacity, and drops that follow one device are that device.
Office WiFi rarely fails all at once. It degrades in a pattern, and the pattern is the diagnosis.
A call dies in the same meeting room every week. A warehouse tablet loses its connection halfway down aisle four. Everything is fine at eight in the morning and falls over at ten past nine when forty people walk in. Those are three different faults with three different fixes, and none of them is solved by rebooting the router.
The common mistake is to treat all of it as one problem called bad WiFi and buy more kit against it. More kit sometimes helps. Just as often it makes things worse, because two access points shouting on the same channel interfere with each other more than one ever would.
This is a diagnostic guide, not a shopping list. It covers the six things that cause drops in a commercial building, what each looks like from a desk, and how to tell them apart before anyone quotes for anything.
Six reasons office WiFi keeps dropping
1. There are not enough access points for the floor area
Coverage is the first suspect and usually the right one.
A single access point in a comms cupboard will show full bars to a phone standing beside it and nothing usable forty metres away through two walls and a lift shaft. Signal falls off fast, and faster still through brick, concrete, foil-backed insulation, metal racking and coated glass partitions.
What it looks like: drops that follow the person, not the clock. The same corner, the same meeting room, the same end of the unit, at any hour of the day.
2. The access points are linked over the air instead of over a cable
Mesh kit was designed to solve a wiring problem, not a capacity problem.
When an access point has no data cabling back to the switch, it uses its own radio to reach the next one, which roughly halves the airtime left for the devices connected to it. Chain two hops together and you are down to a quarter. That holds up in a small unit with light use. It falls apart on a floor of thirty people on Teams.
What it looks like: everything still shows as connected while it slows to a crawl, worst on the access points furthest from the router.
3. Devices are clinging to the wrong access point
Devices decide for themselves which access point to use, and they are stubborn about it.
A laptop that joined in reception will often hold that connection all the way to the back office rather than hand over to the nearer unit, because its own roaming threshold has not been crossed. On unmanaged kit there is nothing to be done about it. On managed commercial access points the network can nudge devices across, but only if somebody configured it to.
What it looks like: calls that die while walking, and connections that recover instantly if you switch WiFi off and on again.
4. The radio channels are crowded, and not only by you
WiFi is shared radio space. On a business park or in a town centre office you are sharing it with everyone around you.
The 2.4GHz band has three non-overlapping channels and carries everything from cordless headsets to Bluetooth to the microwave in the staff kitchen. 5GHz has far more room but travels less well through walls. Access points left on automatic channel selection and never reviewed drift onto the same channels as each other, and as the tenant upstairs.
What it looks like: drops that arrive in waves, worse at certain times of day, and worse on older devices that only use 2.4GHz.
5. The access points are full rather than weak
Signal strength and capacity are two different things, and the signal bar only shows one of them.
Every access point has a ceiling on how many devices it can serve at once and how much traffic it can push through. In a modern building the device count is not the headcount. It is laptops, phones, tablets, VoIP handsets, wireless printers, card readers, sensors and guest devices, plus whatever visitors bring through the door.
What it looks like: five bars and nothing loading. Fine at 8am, unusable in the 10am stand-up, fine again at lunch.
6. The WiFi is not the fault at all
Sometimes the wireless network is doing its job and the problem sits behind it. Things that sit behind the WiFi and produce the same symptoms:
- An internet connection already running at its limit
- An ageing switch, or one with no management and no spare ports
- A firewall with nothing left in reserve
- A comms cabinet added to for ten years without anyone tidying it
- A damaged or badly terminated cable feeding one access point
What it looks like: wired connections are just as bad as wireless, or one access point misbehaves while the rest are fine.
How to tell which one you have
You can narrow this down a long way before anyone comes out, and it is worth doing, because the answer changes what you should buy. Work through these:
- Does it drop in the same places, or everywhere?
- Does it drop at the same times, or at random?
- Is a wired connection in the same room any better?
- Does it get worse as the building fills up?
- Are the access points cabled back to a switch, or linked wirelessly?
- How old are they, and can they be managed centrally?
- Does it affect everyone, or only certain devices?
- Did it start after a change, a new tenant, a partition, new racking, a fit-out?
A pattern that follows place is coverage or interference. A pattern that follows time is capacity. A pattern that follows one device is that device. No pattern at all, and the wired network underneath is the place to look.
What is worth doing before you spend anything
Two checks cost nothing and occasionally fix it outright.
Split the 2.4GHz and 5GHz networks so they can be tested separately, then see whether the drops follow one band. After that, look at where the access points physically are rather than where the drawing says they are. Ceiling units get boxed in by new partitions, buried above suspended ceilings during a fit-out, or left sitting behind metal ducting. It happens more often than anyone admits.
If neither changes anything, guessing gets expensive. Measuring the building is the only way to know whether the answer is a change of channel plan, a proper business WiFi installation, or a rethink of the cabling underneath.
How Core Comms can help
Most facilities and IT managers have tried the obvious fixes by the time they ring anyone, so this starts with measurement rather than a quote.
We measure it on a WiFi survey, walking the floor with Ekahau-equivalent survey tools and mapping signal and interference against how the space is actually used. The switching and cabling behind the access points get checked too, because we do not assume those are sound. What comes back is a plan showing where coverage fails and why, then a fixed itemised quote against it.
Often that plan is smaller than expected. If four correctly placed access points on wired backhaul will do it, we will say so rather than sell you eight. If the real fault is a tired switch, we will tell you that instead.
Core Comms has installed voice and data networks across the North West and West Yorkshire since 2019, with a team carrying more than 50 years of combined experience.
If your office WiFi keeps dropping and you would rather know why than guess, talk to our team or call 0330 838 1000.
FAQs
Why does my office WiFi keep dropping in the same room every time?
A fault that stays in one place is almost always coverage or interference rather than capacity. It usually means no access point reaches that room at a usable strength, or the fabric of the building is blocking it. Measuring the signal in the room itself settles it quickly.
Can adding more access points make office WiFi worse?
Yes. Units added without measuring often land on the same channels as each other, so they compete for airtime instead of sharing the load. More kit on a badly planned layout can lower throughput, which is why placement matters more than quantity.
Do I need new cabling to fix WiFi drops?
It depends how the access points are connected today. Units linked wirelessly to each other lose roughly half their airtime per hop, so cabling them back to a switch often fixes the drops on its own. Where cabling already exists and tests clean, nothing new is needed.
How can I tell whether the problem is WiFi or my internet connection?
Plug a laptop into a network point in the affected area and repeat the task that was failing. If the wired connection is just as slow or unstable, the fault sits with the connection, the switching or the cabling, not the wireless. If wired behaves and wireless does not, the wireless is where to look.
What should I check before paying for new WiFi kit?
Start with where the access points physically sit, because partitions and suspended ceilings hide them more often than the drawings suggest. Then test whether the drops follow one band, one place or one time of day. Those three answers narrow the cause considerably.
Ready to fix your office network?
Talk to Core Comms about a network review and we'll help you get to the root of the problem.
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