Network Spikes Troubleshooting Flow: A Fast Yes/No Tree
Online lag spikes usually have a local cause (Wi-Fi interference, bufferbloat, background uploads). This quick yes/no flow isolates the likely culprit without endless guessing.
Fast Yes/No Flow
- Do spikes happen only under household load (streaming/upload)? If yes: suspect bufferbloat/queueing.
- Do spikes disappear on Ethernet? If yes: Wi-Fi interference/distance/channel.
- Do spikes align with your own uploads/sync/updates? If yes: local background load.
- Do spikes persist even on Ethernet with no load? If yes: ISP routing or server-side issues.
Rule: change one variable (Ethernet, load, channel) and re-test. If everything changes at once, you learn nothing.
Related Guides
Queue ManagementFix latency under load.
Wi-Fi Stability RulesDistance, channels, interference.
Ethernet vs Wi-FiWhy wired usually wins.
Ping vs Jitter vs BufferbloatConsistency beats averages.
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