How to Fix Streaming Buffering on Australian NBN and Home Wi-Fi

Separate the service, device and network

Play the same programme on another device connected to the same network. If every device buffers, investigate the router, NBN service or streaming platform. If only one television buffers, focus on that app, device and Wi-Fi signal.

Run the speed test where you watch

A test next to the router does not represent the TV in another room. Run a test on the television device or stand beside it with a phone connected to the same Wi-Fi band. Repeat the test rather than relying on one peak.

Test Ethernet

Connect the television or streaming box directly to the router. If buffering disappears, the NBN plan is probably adequate and the local Wi-Fi needs improvement.

Improve router placement

• Place the router in an open and elevated position.
• Keep it away from metal cabinets, microwaves and dense obstacles.
• Do not hide it behind the TV.
• Keep firmware current.

NBN Co recommends optimising the in-home setup and notes that mesh systems can improve coverage in larger homes.

Use mesh Wi-Fi correctly

Place a mesh node where it still receives a strong signal, not inside the dead zone. Use Ethernet backhaul where practical and check which node the TV is actually connected to.

Choose the right Wi-Fi band

2.4 GHz reaches further but is often crowded. 5 GHz is faster at short range. 6 GHz can provide clean channels on Wi-Fi 6E or Wi-Fi 7 equipment but has shorter range and requires compatible devices.

Pause household traffic

• Game and operating-system updates
• Cloud photo backups
• Large uploads from work computers
• Multiple 4K streams
• Security-camera uploads

Update the streaming app and device

Install firmware and app updates before an important event. Remove unused apps and restart the television. On Android TV or Fire TV, clear the app cache before clearing app data, which usually signs the user out.

Lower quality temporarily

Select Auto or HD instead of forcing 4K. Stable HD is better than a higher resolution that freezes. When quality becomes stable, improve the network before increasing it again.

Fire TV power and heat

Use the supplied mains adapter. A low-power TV USB port can cause restarts and slow performance. Use an HDMI extender and allow airflow when the stick is hot behind the television.

Restart in the correct order

1. Close the app.
2. Restart the television or streaming device.
3. Restart the router if the whole network is affected.
4. Wait for the NBN connection to fully return.
5. Test one stream before reconnecting heavy devices.

When to contact the retail service provider

NBN Co operates the wholesale network, while most households contact their retail service provider for faults. Collect wired speed tests, dates, times and status-light information. Contact the provider when multiple wired devices experience the same dropouts or speeds remain consistently below expectations.

Live sport and early-morning events

Live streams cannot build a large buffer without falling behind. Open the event early, pause updates and avoid changing router settings during the match. See our Australian live sports guide.

Ten-minute checklist

1. Test a second device.
2. Pause downloads.
3. Restart the affected app and device.
4. Switch to Ethernet or stronger 5 GHz Wi-Fi.
5. Lower quality to Auto.
6. Check updates.
7. Test another official stream.

Official sources

• NBN Co in-home optimisation
• NBN Co optimisation guidance
• Avoid the Wi-Fi gap

Frequently asked questions