Prefer a simpler explanation? Read the megaphone analogy: why more Wi-Fi isn’t always better.
Six access points. A reason to look closer.
During an assessment, Jonathan found six wireless access points close to one another, broadcasting on overlapping channels at high transmit power. The channel widths were also too wide for the environment.
There was already plenty of equipment. Before recommending another access point, the existing placement and radio settings needed attention.
The visit raised a useful question: does your network need more equipment, or does the equipment need to work together better?
Can too many access points cause problems?
Yes, a poorly planned deployment can create unnecessary competition for radio airtime. But six access points is not inherently too many. The right number depends on the building, walls, users, devices and where connections are needed.
Additional APs can solve real coverage or capacity problems. The issue is adding them without considering how they share the available channels and serve the space.
Strong Wi-Fi signal but slow internet?
Signal bars are only part of the picture. A strong connection can still be slow when nearby networks or your own equipment are competing for airtime. Ubiquiti describes how high airtime utilization can contribute to delays, dropped connections and slow speeds in its guide to Wi-Fi airtime and interference.
Similar symptoms can come from the internet service, a cable, a switch or the device itself. Strong signal with poor performance is a reason to investigate, not proof of interference.
Channels need a plan
Nearby APs on the same channel share airtime when they can hear each other. Partially overlapping channels can introduce additional interference. A channel plan considers your own radios and neighboring networks together.
Some coverage overlap is useful as people move around. Overlapping coverage areas and overlapping radio channels are different things; the aim is not to eliminate all overlap.
Wider channels are not always faster in practice
A wider channel uses more spectrum and can support higher speeds in suitable conditions. It also leaves less room for separate channels in a busy environment. A setting that works well for one AP may be a poor fit for several nearby APs.
Channel width should reflect the band, available spectrum and devices. There is no single width that is best for every installation. Ubiquiti’s wireless speed guidance treats channel selection, width, client capabilities and the surrounding environment as parts of the same performance question.
Turning up the power is not a coverage plan
Wi-Fi is bidirectional. Your phone or laptop needs to transmit back to the access point. Increasing AP power alone does not strengthen that return path. Ubiquiti highlights this limitation in its connection troubleshooting guidance.
Power settings deserve review alongside placement. Automatically lowering every radio is not the answer either: that can create coverage gaps. Changes need checking in the actual rooms and on the devices people use.
What about extra wireless routers or mesh points?
An access point supplies Wi-Fi; a wireless router also handles routing between networks. Adding routers is not necessarily the same as expanding one coordinated Wi-Fi system. The operating mode and connections matter.
Mesh placement matters too. A point still needs a usable link back to the network. Where practical, wired backhaul—an Ethernet connection from an AP back to the network—reduces reliance on wireless links between points. Our office mesh project shows why reviewing placement can be worthwhile before buying replacements.
Measure first. Then decide what to change.
Useful information to bring to an assessment includes:
- Where the problem happens, and where the connection works well.
- Whether it affects one device or several.
- Whether calls drop, downloads slow down or devices disconnect.
- Where the APs, routers or mesh points are installed.
- What has already been changed or added.
We use those observations to guide a review of the network. Paid optimization work can include baseline measurements, targeted changes to placement or settings, and repeat checks in the same areas. Sometimes that points to better tuning; sometimes to cabling, a different layout or additional equipment.
For help with an existing system, explore Wi-Fi optimization and interference troubleshooting in Westchester. Already using Ubiquiti? See our UniFi Wi-Fi tuning service.
Start with a Free Wi-Fi Assessment. The assessment provides review and recommendations; configuration, relocation and installation work require a separately agreed paid scope.