Troubleshooting
Why Does Streaming Keep Buffering?
Find why video playback keeps buffering: compare the app, device, Wi-Fi and Ethernet, check actual playback conditions and avoid blaming a fast or slow speed test alone.
A video player stores some upcoming video before showing it. If that supply runs out, playback may pause to load more. A brief connection dip can therefore matter even when a later speed test looks fast. But a frozen app, jerky pictures and a lower resolution are different symptoms, and buffering alone does not identify the faulty part.
Separate the symptoms and affected devices
- Look for a loading indicator and playback pause. If the app stops responding entirely or the picture stutters while sound continues, investigate the app and device too.
- Try the same programme at a similar quality on another supported device. If only one device struggles, check its app, browser and network connection before changing the broadband plan.
- Try another title and another service. A problem limited to one service may involve the service, app or specific network path; it does not rule out your connection.
- Record whether it affects live video or also on-demand playback. Evening-only problems need comparisons under similar conditions, rather than an automatic conclusion that the provider is overloaded.
Compare the wireless path fairly
Where possible, use the same playback device and programme to compare Wi-Fi with Ethernet. If you cannot wire the device, compare playback near the router with its usual location. Improvement near the router suggests investigating wireless coverage, not an immediate router replacement. Ethernet can remove the wireless part from a comparison, but cannot guarantee uninterrupted playback or eliminate problems elsewhere.
Measure without creating the problem
- First play with your large downloads, updates and cloud backups paused. Then compare your normal competing use; change one condition at a time.
- Run a speed test between playback attempts, not while the video is playing. A simultaneous test can consume the capacity you are investigating.
- Measure on the playback device if it supports a network check, or at the same location. Another laptop beside the router does not measure a TV's wireless path.
- Note the quality, time and interruptions, and repeat at another time with the same settings. A test server and a streaming service can use different paths.
Lower player quality temporarily where available, then repeat the same video. Improvement is a useful workaround and clue, not proof of a line fault. Check the service's current guidance: Netflix recommends a stable 5 Mbps for 1080p and 15 Mbps for 4K. These are Netflix recommendations, not universal limits or guarantees, and other household traffic needs capacity too.
Check software and collect useful evidence
- Close and reopen the app or browser, and check supported versions and official updates for that device. Save any exact error message.
- Use the service's instructions for your model if clearing cache or app data is needed. Removing app data may require signing in again; do not factory-reset the TV as a first step.
- Restart the playback device according to its maker. If wider connection problems justify a router restart, save observations first and warn others that calls and transfers will stop.
- Record service, title, date and time zone, device and app version, Wi-Fi or Ethernet, quality and each comparison result. Share private account information only through the support channel.
For a service-specific problem, give the streaming support team these results. For problems across services and devices, ask the connection provider to investigate; a device-specific result may need the device maker. A faster plan helps only if measured available capacity is the relevant limitation. It will not fix every app error, service outage or weak wireless path.