Fix Slow Wi-Fi on Mac (2026 Guide)
Slow Wi-Fi on a Mac usually has six root causes. This guide walks through each one in plain English so anyone can find the culprit and fix it without opening Terminal.
1. Confirm the problem is Wi-Fi, not the internet
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2. Check signal strength (RSSI) and noise floor
What good signal looks like
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What bad signal looks like
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3. Identify channel congestion and interference
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4. Move closer or change router placement
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5. Switch band (2.4 GHz vs 5 GHz vs 6 GHz)
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6. Test with a different DNS resolver
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When to upgrade hardware
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FAQ
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