Wi-Fi Congestion: Why It’s Worse at Night (And How to Test It)
Wi-Fi is shared air. At peak hours, neighbors and devices compete for time and channels. Congestion shows up as spikes and jitter — not a clean disconnect.
How to Test Correctly
- Test at two fixed times (e.g., afternoon vs late evening).
- Test under real home load (streaming + gaming).
- Look for spikes and jitter, not average speed.
- Repeat for 3 days to confirm a pattern.
What You Can Control
- Reduce distance/obstacles and improve placement.
- Switch to cleaner channels (especially 5 GHz).
- Use Ethernet for competitive sessions.
Rule: if performance changes by time-of-day, suspect congestion first. Don’t buy hardware until you confirm the pattern.
Related Guides
Wi-Fi for GamingStability rules that reduce spikes.
Ethernet vs Wi-FiWhy wired usually wins.
Router Checklist v2Stability under load checklist.
Network StabilityWhy spikes beat averages.
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