Start with evidence
Run the tests that separate the likely branches
Browser Latency TestMeasure several browser-to-DeviceOK request round trips as a quick connection responsiveness check.
Run →Browser Network Timing Variation CheckRun repeated HTTP round trips to DeviceOK and show timing variation between samples.
Run →Network Information CheckRead browser-exposed connection type, estimated round-trip time, downlink, Save-Data state, and online status where supported.
Run →Decision table
What the observation changes
ObservationWhat it meansNext action
Only one client is slowClient capability/config/RF position is higher priority than AP-wide failure.Compare a second capable client in same location.
All clients cap near a Gigabit wired ceilingCheck AP switch uplink negotiation.Verify U7 Pro negotiated 2.5GbE on the UniFi switch.
LAN is fast but internet is slowWAN/upstream service becomes higher priority.Test gateway/WAN independently.
Sequence
Work from reversible checks to escalation
- 01
Check AP uplink link speed in UniFi Network.
- 02
Compare multiple clients and bands.
- 03
Record latency/jitter near AP and at problem location.
- 04
Inspect RF/channel only after link/WAN are separated.
Likely areas
Keep these branches separate
Client radio/band/channel1GbE upstream bottleneckWAN/serviceRF interferenceAP configuration
Repair boundary
When to stop changing settings
If the AP repeatedly drops/reboots or cannot negotiate its documented uplink on known-good infrastructure, use Ubiquiti diagnostics/support.