Why Am I Not Getting the Internet Speed I Pay For?

Quick answer

Plans advertise a maximum, not a guarantee. Before blaming the provider, measure fairly: cable into the router, other devices paused, tested at different times of day. If the wired result sits well below your plan for days, it's on their side; if only Wi-Fi is low, the fix is your network, not your plan.

What "up to" really means

The speed in your plan's name is what the line can deliver under good conditions — the top of the range, not the average. How close you get depends on the technology: full fibre usually lands near the advertised figure, while DSL falls away with the length of the copper line and cable shares capacity with your neighbourhood. A single test below the plan number is normal; a wired connection that never comes close is worth investigating.

Measure fairly first — five steps

Most "I'm not getting what I pay for" reports are measuring noise, not a fault. Rule the noise out:

  1. Restart the router and leave it a few minutes after it comes back up.
  2. Use a cable. Connect a computer directly to the router with Ethernet. This removes Wi-Fi — the biggest single source of low readings — from the measurement.
  3. Pause the background. Backups, cloud photo sync, game launchers, other people's streaming: everything moving data takes a share of the plan.
  4. Run the speed test several times, at different hours — once in the morning, once in the evening. One evening number is worth little; a pattern across days is worth a lot.
  5. Compare against the plan. In the test's settings you can save your plan speed, and the result card shows what percentage of it you measured.

What to expect

A wired result slightly below the plan figure is normal — network overheads take a small share of any connection. The gap to worry about is a wired result far below the plan, day after day.

What quietly takes a share of your speed

  • Wi-Fi. Distance, walls, floors and neighbouring networks cut wireless speed, often to a fraction of the line's real rate. If your cable test is fine but Wi-Fi isn't, the plan isn't the problem — improve the Wi-Fi instead.
  • An old router. Hardware from the era of 50 Mbps plans may not pass through what a modern line delivers.
  • Other devices and people. A console downloading an update can take most of a 100 Mbps plan on its own.
  • Busy hours. On shared networks (cable, mobile home internet), evenings deliver less than mornings.
  • VPNs and security suites that scan traffic — they sit in the path of every megabit.

When it is the provider

If fair measurements — cable, quiet line, several days — stay far below the plan, the shortfall is on the provider's side: the line, their equipment, or congestion in your area. Before you call, separate it from two look-alikes:

Take it to your provider with evidence

A support agent can't argue with a dated list of wired results. Bring: your plan's advertised speed, three to five test results with dates and times (mornings and evenings), the router model, and what you've ruled out — cable test, restart, other devices paused. Ask for a line check and whether there's a known fault in your area. Ask what minimum speed your plan guarantees; in several countries regulators require providers to act — or let you leave — when a connection stays below it.

When an upgrade isn't the answer

If the bottleneck is Wi-Fi or an old router, a faster plan changes the advertised number and little else: the same walls will cap the same wireless network. Fix the home network first, then re-test, and only then decide whether the plan itself is the limit. If slowness is general rather than plan-shaped, start wider with why is my internet so slow.

Questions

Is my ISP lying about my speed?
Rarely — the plan figure is a maximum the line can reach, and "up to" plans are legal in most markets. A wired test far below the plan, sustained over days, is the case worth raising.
Why is Wi-Fi slower than my plan speed?
Wi-Fi loses speed to distance, walls and interference. Compare a cable test at the router: if the cable is near the plan, the line is fine and the wireless network is the limit.
What percentage of my plan should I get?
There's no guaranteed figure, but a wired test slightly below the plan is normal overhead. If you want a target, use the plan-comparison card in our test's settings to track what you actually get.
How do I prove slow speed to my ISP?
Keep three to five wired test results with dates and times across different hours, note your router model and what you ruled out, and ask for a line check.