I'm using a Windows 11 laptop with what should be a very fast Wi‑Fi connection, but it periodically suffers massive latency spikes. They happen roughly every minute, though I haven't measured the timing precisely, and they make gaming and voice calls nearly impossible. I've already tried several solutions found online without success. The issue may also affect my phone, but I haven't tested it long enough to confirm. What should I check to identify and fix the cause?
2 Answers
Since you’re on Windows 11, test another device for several minutes at the same time. If your phone also experiences the pauses, restart and update the router, try the other Wi‑Fi band, and check whether another device is using heavy bandwidth. If only the laptop is affected, update or reinstall its wireless driver and check for background downloads or power-saving settings that may be interrupting the adapter.
First figure out whether this is limited to the laptop or affects the whole network. Run a continuous ping to your router’s local address and another to a public address while the spike happens. If both show a jump, the Wi‑Fi connection or router is likely involved; if only the public ping spikes, the modem or ISP may be the problem. Also note whether your connection comes through cable, fiber, or 5G, since the likely causes differ.
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