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Troubleshooting

Why Does Netflix Keep Buffering?

Constant buffering usually isn't Netflix's fault — it's your local network. These fixes solve it in most cases.

Updated 2026

  1. 1

    Check your actual speed

    Run a speed test at fast.com (Netflix's own tool). You need at least 5Mbps for HD and 25Mbps for 4K. If speeds are below this, the problem is your connection, not the app.

  2. 2

    Switch from WiFi to Ethernet

    WiFi fluctuates — a brief dip in signal causes buffering even if average speeds look fine. An Ethernet cable gives consistent bandwidth to your TV or streaming stick.

  3. 3

    Reduce the video quality temporarily

    In Netflix Settings → Playback → Data Usage, drop to High instead of Auto. This confirms whether bandwidth is the issue.

  4. 4

    Restart your router and streaming device

    Power both off for 30 seconds. This clears stale connections and often resolves buffering immediately.

  5. 5

    Check if other devices are using the connection

    Downloads, backups and other streams all compete for bandwidth. Pause them while watching.

Frequently Asked Questions

How much speed do I need for Netflix?
3Mbps for SD, 5Mbps for HD, 15Mbps for Full HD, 25Mbps for 4K Ultra HD. These are per-stream — multiply by the number of simultaneous streams in your home.
Why does it buffer at night but not during the day?
Evening peak hours put more load on your ISP's network. If this is consistent, contact your ISP — you may be on a congested node.