Why does my TV keep buffering?
Buffering, the spinning wheel and the pause to reload, is almost always the network struggling to reach the TV, not a fault in the television. A fast internet plan does not help if the signal arriving at the set is weak or shared thin. Work through these in order, from the quick resets to the real cure, and you will usually find it.
Start with the quick resets
Clear the easy causes first. Restart the streaming app by closing it fully and reopening it. Then power-cycle the network: Unplug the router and the TV for a minute, plug the router back first, let it settle, then the TV. This alone clears a lot of buffering, because it rejoins the TV to the network cleanly and clears a stalled connection. If it comes back, keep going.
Check the real speed at the TV
This is the key test, because it separates a network problem from everything else. Our TV Speed Test measures the actual download speed reaching the television, which is not the same as the speed on your phone or the number on your plan. As a rough guide you need about 25 Mbps for 4K, 5 for Full HD, and 3 for HD. If the speed at the TV is well below that, the problem is the connection reaching the set, and the next two steps are the fix. Our guide on internet speed for 4K streaming covers the numbers in detail.
Look at the Wi-Fi signal
A fast plan still buffers if the Wi-Fi reaching the TV is weak. Distance, walls, and other networks all sap the signal, and a TV tucked in a corner far from the router is a common cause. Most routers offer two bands: 2.4GHz reaches further but is slower and more crowded, while 5GHz is faster but shorter range. Try the other band, move the router into the open, or add a mesh point near the TV. Our guide on a TV that keeps dropping Wi-Fi works through the signal causes.
Go wired if you can
The single most reliable cure is to stop using Wi-Fi for the TV. An Ethernet cable from the router to the television gives a steady, full-speed connection that does not fade or fight with the neighbours. If running a cable is not practical, a pair of powerline adapters, which send the network over your electrical wiring, is the next best thing. A wired TV almost never buffers.
Is it one app, or everything?
Narrow it down. If only one app buffers while the others play fine, the problem is that app or its service, not your network: Sign out and back in, or remove and reinstall the app to clear its cache. If every app buffers, it is the network, and the steps above are the answer. Peak evening hours also matter, when the whole neighbourhood streams at once and your provider slows down. If your connection simply cannot hold 4K, drop the streaming quality a notch in the app, which our streaming data calculator puts in context.
Questions people ask
Why does my TV keep buffering but my phone does not?
Usually because the TV gets a weaker Wi-Fi signal than the phone, or sits further from the router, so less speed actually reaches it. Run the speed test on the TV itself to see the real number at the set. A wired connection, or moving the router closer, fixes most cases.
How much internet speed do I need to stop buffering?
About 25 Mbps for a 4K stream, 5 for Full HD, and 3 for HD, measured at the TV. Speed on your plan or your phone is not the same as the speed reaching the television, so test on the set. If it falls short, the connection to the TV is the thing to fix, not the plan.
Does a wired connection stop buffering?
Almost always. An Ethernet cable gives the TV a steady, full-speed link that does not fade with distance or compete with other networks, which are the usual causes of buffering. If you cannot run a cable, powerline adapters over your electrical wiring are the next best fix.
Start by measuring what actually reaches the set with the TV Speed Test. If the speed is fine but the connection keeps dropping instead of just slowing, see why a TV keeps dropping Wi-Fi.