It's 10:02 and the Monday meeting is starting. Half the room's video is frozen, someone is holding their laptop up toward the ceiling, and a person in the back says what everyone is thinking: "We need faster internet."
Maybe. But if a speed test next to the network closet looks fine, the internet is probably not your problem. The problem is somewhere between that closet and the conference room. Here are the seven causes we look for, in roughly the order we check them.
First, a two-minute test
Plug a laptop into a network port and run a speed test. Then unplug it, walk to the spot where Wi-Fi is bad, and run it again on wireless. Good wired result, bad wireless result: the problem is inside your office. Keep reading.
1. Coverage gaps
Wi-Fi signals weaken with distance and with everything they pass through. Drywall costs a little; concrete, elevator cores, brick, metal filing cabinets and some glass cost a lot. An access point that covered the whole office before a renovation may not reach the new corner offices at all. Devices at the edge of coverage connect at slow rates and drag down performance for everyone sharing that access point.
2. Too few access points for the number of people
An access point shares its airtime among every device connected to it. Twenty laptops, twenty phones and a couple of TVs in one room can overwhelm a single access point even when the signal is strong. This is why conference rooms and open-plan areas struggle during meetings and are fine at 7 AM. The fix is capacity: more access points, placed by where people actually sit and meet.
3. Interference and crowded channels
In a Manhattan high-rise, your Wi-Fi is sharing the air with every office above, below and beside you. On the 2.4 GHz band there are only three channels that don't overlap (1, 6 and 11), so neighbors collide constantly. The 5 GHz band has many more channels, and Wi-Fi 6E and Wi-Fi 7 devices can use 6 GHz, which is far less crowded. Moving devices to 5 GHz and 6 GHz is often the single biggest improvement in a dense building.
4. Channel width and power set wrong
Wider channels are faster on paper but overlap more with neighbors. Access points turned to maximum power can reach devices that can't transmit back as strongly, which creates slow, lopsided connections. Consumer-style "set it to max" settings often make a busy office worse. Proper tuning usually means narrower channels and more moderate power across more access points.
5. An overloaded or outdated switch
Every access point connects back to a switch. If that switch port runs at 100 Mb/s instead of 1 Gb/s, or the switch can't supply enough PoE power, the access point behind it is capped no matter how good it is. Older switches, failing ports and PoE budgets that ran out as you added phones and cameras are all common culprits. If a switch has actually failed, same-day break-fix gets it replaced.
6. Bad cabling
A damaged cable, a bad termination or a run that's too long can force a link down to a slower speed or make it drop and reconnect all day. From the user's side it looks like "the Wi-Fi keeps cutting out." A cable test finds it in minutes, and re-terminating or re-pulling the run is routine infrastructure work.
7. Old devices and old access points
A network moves at the pace its slowest clients allow. Very old laptops, printers and smart devices that only speak older Wi-Fi standards slow down the access points they connect to. Access points themselves age too: a model that was fine for email years ago may not handle a room full of video calls.
When a wireless assessment makes sense
- Complaints cluster in specific rooms or at specific times of day.
- You've renovated, moved walls or added people (planning a move? Start with our office move IT checklist).
- You're about to buy new access points and want to know how many and where.
- Video calls are business-critical and they keep failing.
A proper wireless assessment maps signal and interference across the floor, checks the switching and cabling behind each access point, and ends with a short list of changes ranked by impact. Often the fix is placement and settings, not a shopping cart.
Sources
- Meraki Channel Planning Best Practices
- Meraki Channel Bonding
- Power over Ethernet standards and wattage (FS.com)
Vendor details checked September 2026. Licensing and product features change; confirm current terms with the vendor before you buy.
