A picture that freezes, rebuilds itself blockily, then carries on is almost never a sign that you bought too small a broadband package. It is a sign that something between the socket in your wall and the screen in your room is losing data. This guide works through those points in the order they go wrong, so you can stop guessing and change the thing that is actually at fault. If you are still setting things up, the installation guide covers each device first, and the Strong 8K home page sets out what the service includes.
What Buffering Actually Is
A player does not fetch video frame by frame as you watch. It fetches a few seconds ahead and holds them in memory, so that a brief interruption passes unnoticed. That held reserve is the buffer. Stuttering happens when the reserve empties faster than it refills.
This matters because it tells you where to look. The reserve can empty because the data never arrives, because it arrives too late, or because it arrives damaged and has to be requested again. Those are three different faults with three different remedies, and raw line speed only addresses the first one.
It also explains a pattern people often report: a stream that runs perfectly for ten minutes and then collapses. Nothing changed about the connection. The reserve simply ran out after absorbing a long run of small interruptions.
Start by Separating Wi-Fi From the Line
Nearly every complaint that begins "my broadband is too slow" turns out, on inspection, to be a complaint about the last few metres of it. The line into the building and the wireless signal inside it are two different things, and only one of them is what you pay for.
The Test That Settles It
Connect one device to the router with a cable and play the same content that was stuttering. If it plays cleanly, the line is fine and the fault is in the wireless. If it still stutters, the problem is upstream of your equipment.
This takes two minutes and it is worth doing before anything else, because the two cases lead in opposite directions. One is solved by moving a box. The other is not solved by anything you own.
If the Cable Fixes It
Then you have a coverage problem, and the rest of this guide is about coverage. Upgrading your package would change nothing, because the line was never the limit.
Where the Router Sits
Routers are usually installed wherever the cable enters the property, which is to say in a hallway, often low down, frequently inside a cupboard. That is the worst place for it and the easiest thing to change.
Wireless signal weakens with distance and with every obstacle it passes through. Solid walls, especially those containing brick or stone, absorb a great deal of it. Metal reflects it. Water absorbs it, which is why a large aquarium or even a full hot water tank sits between you and the signal more effectively than its size suggests.
Practical Changes That Cost Nothing
Raise the router off the floor and out of any enclosure. Move it towards the middle of the home rather than one end. Keep it clear of large metal objects and of other equipment that transmits, including cordless telephone bases and microwave ovens, which operate in a frequency range that overlaps with one of the wireless bands.
If the router has external antennas, leaving them upright generally serves a single-floor home better, while angling one of them flat helps reach a floor above or below.
The Two Bands, and Why the Faster One Is Often Worse
Modern routers transmit on two frequency ranges at once. The lower one travels further and passes through walls more readily, but carries less data. The higher one carries much more data but is stopped by obstacles that the lower one shrugs off.
Devices choose between them automatically, and they do not always choose well. A television two rooms away may cling to the higher band because it was strong when the device first connected, long after the signal has become marginal. The result is a connection that reports a high rate and delivers very little.
What to Do About It
Many routers let you give each band its own network name. Doing so lets you connect a distant television deliberately to the lower band and leave the higher one for devices in the same room as the router. It is less convenient and considerably more reliable.
Time of Day Tells You Something
If the trouble arrives in the evening and clears by late night, the cause is contention: the shared portion of the network carrying more traffic than it comfortably holds, at the hours when everyone is at home.
Nothing inside your home fixes this, and a larger package usually does not either, because the constraint is shared rather than individual. What does help is reducing what else your own connection is doing at the same time. Large downloads, backups and device updates are the usual culprits, and most of them can be told to run overnight.
Keeping a note of when the trouble occurs, over a week, turns a vague complaint into something a provider can act on.
The Device Itself
An older television sometimes has a wireless component considerably weaker than the phone in your pocket, and no amount of signal improvement gets round it. The same set may also struggle to decode a higher-quality stream while running its own interface.
A small external player connected by cable to the screen sidesteps both problems, and it is usually cheaper than any other remedy. Our comparison of players sets out what each one suits.
Before buying anything, restart the device fully rather than putting it to standby. Many televisions never truly shut down, and processes accumulate until a restart clears them.
Working Through It in Order
Test with a cable first, because it splits the problem in two. If the cable fixes it, move the router and reconsider which band the screen uses. If the cable does not fix it, note when the trouble happens before concluding anything about the line.
Change one thing at a time and watch for a day. Changing three at once leaves you knowing that something helped, without knowing what, which is exactly the position you were in at the start.
If a specific step here does not behave as described, tell our support team which device and which player you are using, and they will set out the sequence for your particular setup.
Buffering and Broadband: Common Questions
Will a faster broadband package stop the stuttering?
Only if the line is genuinely the limit, which the cable test tells you. When the fault is coverage or evening contention, a larger package changes nothing, because neither of those is a shortage of the capacity you buy.
Why does it stutter on the television but not on my phone?
The phone is usually nearer the router, has a better wireless component, and is showing a smaller picture that needs less data. All three work in its favour at once.
Does a wireless extender help?
Sometimes, and sometimes it makes matters worse. A simple extender repeats the signal it receives, so placing it where reception is already poor repeats a poor signal. It belongs halfway between the router and the problem area, not at the problem area itself.
Should I turn the picture quality down?
It is a reasonable temporary measure and a poor permanent one. Lowering quality reduces how much data is needed, so the stream holds together, but you have accepted a worse picture rather than repaired anything.
The cable test fixed it. Do I need a mesh system?
Not necessarily. Move the router first and split the two bands, because both cost nothing. A mesh system is worth considering when the home is large or awkwardly shaped and those two steps have already been tried.
If you are weighing your options more broadly, the television switch-off explains what is changing for terrestrial viewers and what the alternatives involve.
Still Stuttering After All That?
Tell us which device, which player and roughly when the trouble happens. We answer in writing and we will tell you what to try next.
