All articles
April 21, 202610 min read

How to read your UniFi dashboard: the five numbers that actually matter

The UniFi dashboard surfaces more data than any consumer router, but only a handful of numbers predict whether your network is healthy. Here are the five to watch — RSSI, channel utilization, PoE draw, WAN uptime, and AP uptime.

UniFiNetworkingWi-FiMonitoringTroubleshooting

The UniFi dashboard is a gift and a curse. It exposes more real data about your network than any consumer router will ever show you — RSSI, channel utilization, PoE draw, retries, errors, uptime. It also buries the five or six numbers that actually matter under dozens of charts and colored bars that look equally important at a glance.

This is the field guide we hand homeowners and small business owners who have UniFi gear and want to know what they’re looking at. Five numbers. What each one should read. When to panic, and when to ignore a red dot.

Before the numbers: which UniFi console are we talking about?

The dashboard layout has shifted multiple times. The current UniFi OS on a Dream Machine, Cloud Gateway Ultra, or UDM Pro lands you on an overview page, with left-side navigation into Network, Protect, and the other apps. Everything in this post is in the Network app. If you’re on the standalone Network controller running on a Cloud Key or a self-hosted VM, the numbers are the same but the layout is slightly different. We covered the hardware differences in the Dream Machine vs Cloud Gateway Ultra vs UDM Pro post.

Number 1: client signal strength (RSSI)

Click any connected Wi-Fi client and you’ll see a signal value in dBm. RSSI (Received Signal Strength Indicator) is the single best predictor of whether a device will perform well.

The scale is negative and backwards from intuition:

  • -40 to -55 dBm: excellent. Device is essentially next to the AP.
  • -56 to -67 dBm: good. Normal operating range, full speeds.
  • -68 to -75 dBm: acceptable. Works fine, but streams may drop if there’s interference.
  • -76 to -85 dBm: weak. Connects, but throughput tanks. Video calls stutter.
  • Worse than -85 dBm: the device should have roamed to another AP ten minutes ago.

If you consistently see clients sitting at -75 or worse in a particular room, the fix is not a mesh extender or a bigger router. It’s another AP, wired with Ethernet, mounted closer to that space. This is the entire argument made in the mesh Wi-Fi vs wired APs post, and the UniFi dashboard is what gives you the evidence.

Homeowners in Draper, Alpine, and other large-lot neighborhoods are the ones who most often see weak RSSI in a basement or detached office. It’s a coverage problem, not a router problem.

Number 2: channel utilization

Open the Insights page on any access point and look at channel utilization, sometimes labeled “airtime utilization.” It’s the percentage of time the radio’s current channel is busy — with your traffic, your neighbor’s Wi-Fi, microwave interference, or other 2.4/5 GHz noise.

  • Below 30%: plenty of headroom. Everyone gets fast air time.
  • 30–50%: normal for a busy home. Fine.
  • 50–70%: getting crowded. Clients will start seeing latency spikes.
  • Above 70%: the channel is saturated. Throughput drops, retries climb, and everyone feels the network is “slow.”

Saturated 2.4 GHz is normal in dense neighborhoods — apartments, townhome clusters, the east side of Salt Lake City where every condo has its own router. Saturated 5 GHz at 70%+ almost always means you’re on the wrong channel or using too wide a channel width (80 or 160 MHz when you should be on 40). The fix is in the Radio settings for the AP, not a hardware upgrade.

A small note: Wi-Fi 6E on the 6 GHz band almost never shows meaningful utilization because, for now, there aren’t many 6E devices. This is one of the real advantages covered in the Wi-Fi 6E vs Wi-Fi 7 post.

Number 3: PoE power draw

On any PoE-capable switch, the port detail view shows “Power Used” for each PoE device and a total at the bottom for the switch. This is the number that silently eats installs alive.

Every switch has a total PoE budget — typically 250W on small switches, 400W on the UniFi Pro 24 PoE, 600W on the Pro Max models. If your combined draw is close to that budget, the switch starts denying power to new devices, or in worst cases, dropping power to existing ports when a high-draw camera or AP spikes.

What to look for:

  • Total used < 60% of budget: healthy. You have room to add devices.
  • 60–80%: plan the next switch upgrade before you add more cameras or APs.
  • Over 80%: you’re a cold morning away from a camera with heaters kicking the budget over and a port dropping.

The deep dive on PoE tiers and budgets is in the PoE explained post. If you have more than a handful of PoE devices, watching this number monthly is the difference between a stable network and a mysterious-intermittent-camera problem in January.

Number 4: WAN uptime and ISP quality

The overview page shows WAN status, and under Internet Insights you get a running uptime history of the internet connection. This is the most useful piece of data for arguing with an ISP.

UniFi samples the WAN connection every few minutes and logs outages. You’ll see blips that last 15 seconds (usually fine), outages that last 2–5 minutes (routine), and outages that last hours (not fine, and now you have a timestamped record).

What healthy looks like:

  • 99.9%+ uptime: excellent. Typical of a good fiber ISP in Utah.
  • 99.5–99.9%: acceptable on cable. That’s one 20-minute outage per month.
  • Below 99.5%: your ISP is having a bad month. Keep the logs for the support call.
  • Below 99%: your ISP has a systemic problem. Either fight for a credit, or set up dual-WAN cellular failover so you stop noticing.

For short-term-rental properties, the cost of a several-hour outage is very different from a primary residence — which is part of why we push hard on cellular backup in the Park City and Heber STR security post.

Number 5: AP uptime (and why short uptimes are the alarm)

In the Devices list, every AP, switch, and gateway shows an uptime counter. Most homeowners glance at this and feel good when the number is big.

The real signal is when the uptime is unexpectedly small.

A healthy UniFi install typically shows access points with uptimes measured in weeks or months. They only reboot when they’re firmware-updated. So if you check the dashboard and an AP says “up 6 hours,” something happened to that AP today and you should find out what.

Common culprits:

  • PoE brownout — a switch hit its budget and bounced the AP. See number 3.
  • Power outage — if the whole rack wasn’t on a UPS, a 4-second utility flicker takes everything down. This is why we keep writing about smart-home power outage protection.
  • Thermal shutdown — rare, but attic-mounted APs in Utah summers without ventilation can overheat. We avoid this with mounting decisions during pre-wire planning.
  • Firmware auto-update — fine. Confirm from the update log and move on.

One AP with a short uptime is an anecdote. Multiple APs with short uptimes — and matching WAN downtime — is a power or infrastructure problem worth investigating.

Bonus: the charts that usually don’t matter

To save you some worry, here are the things on the dashboard that homeowners routinely panic about but usually shouldn’t:

  • TX retries — a few percent is normal. Wi-Fi retries are part of how the protocol works.
  • Client counts fluctuating — devices come and go all day. Your iPhone shows up as two different MAC addresses on two different bands if randomization is on.
  • Orange alerts on threat management — most are low-severity generic signatures. A couple per day is background noise, not a breach.
  • The speed test widget — it’s run against a UniFi server, on the gateway’s CPU, under whatever load happens to be running at that moment. It’s directionally useful, not an absolute throughput number.

What VLAN segmentation looks like on the dashboard

If your network is properly segmented — IoT on one VLAN, guests on another, the main LAN isolated — the client list in the dashboard shows which network each device is on. You should see smart-home devices clustered on the IoT VLAN, not mixed in with laptops and phones. If they’re all on the same network, that’s the signal that guest isolation and VLANs haven’t been set up. The why, and the how, are in the VLANs explained for homeowners and guest Wi-Fi isolation posts.

When to get someone else to look at it

Most UniFi installs tune themselves acceptably on the defaults. The dashboard is most useful for homeowners who already have a working network and want to know why a specific room feels slow, or why the cameras restart every few weeks. When the numbers above start going consistently red — weak RSSI across multiple rooms, saturated channel utilization, maxed-out PoE budget, AP uptimes that keep resetting — that’s the point at which a site survey and a proper design pass pays for itself.

Bottom line

RSSI tells you if coverage is adequate. Channel utilization tells you if the air is clogged. PoE draw tells you if you’re running out of power. WAN uptime tells you whether the ISP is the problem. AP uptime tells you if something else is restarting your gear. Those five numbers cover 90% of the real network health questions a homeowner can answer from the dashboard. The rest is either marketing polish or debugging detail the next tier of support will use when the simple numbers don’t explain the symptom.

Keystone Integration designs, installs, and tunes UniFi networks across Sandy, Draper, Lehi, and the rest of the Wasatch Front — from single-AP homes to multi-building commercial deployments. See our full service list or reach out if you’d like a second pair of eyes on a dashboard that isn’t telling you what you need to know.