Broadband help · Reviewed 16 October 2026

Why is my Wi-Fi slow?

A Wi-Fi speed test includes both the wireless link and the internet path beyond it. Separate those parts with a few controlled comparisons before changing channels, buying equipment or upgrading your broadband.

Measure, record and compare your connection under the conditions that matter to you.

Open the speed test

Build three useful baselines

Use the same capable device and endpoint where practical
ComparisonWhat it helps investigate
Ethernet at the routerPerformance with the client Wi-Fi link removed; device, router and internet limits remain.
Wi-Fi near the routerWireless performance at a short distance under the current radio conditions.
Wi-Fi in the affected roomThe additional effect of location and the access-point path.

Repeat each condition and record the band or access point from your device or router if available. This browser tool cannot read Wi-Fi signal strength or reliably identify your Wi-Fi generation. Its connection-type estimate is not a radio survey.

Make one change at a time

If wired and nearby wireless tests are strong but one room is poor, investigate coverage, interference, placement and which access point the client uses. If one device is slow in every location, compare its adapter, power settings and supported capabilities. A difference narrows the investigation but does not prove one component is faulty.

If wired trials are also slow, inspect the negotiated Ethernet rate and other household traffic before blaming Wi-Fi. Keep required VPN and security policies in place. Follow the repeatable test procedure so different conditions do not become mixed together.

Check position and the path between devices

  • Place the router or access point in an open, suitable position within its installation requirements. Avoid enclosing it behind dense objects.
  • Test an alternative permitted position before buying more hardware. Floors, walls, nearby interference and antenna orientation can matter.
  • For a wireless mesh or repeater, verify the link back to the main network. A node placed inside the dead spot may have a poor upstream connection.
  • If Ethernet or an extra access point is appropriate, use a safe installation route and suitable equipment; seek an installer where necessary.

Choose bands and channels using actual conditions

2.4, 5 and 6 GHz have different coverage, channel and compatibility characteristics. Available bands depend on local rules and equipment. A higher-frequency band or newer standard is not a promise of a faster result in every room; client capability and signal conditions matter too.

Start with the equipment maker’s automatic channel guidance. If investigating channels manually, follow the model’s documentation and regional restrictions. Wider channels can increase potential capacity while using more spectrum. There is no single channel or width that improves every home. Keep supported encryption enabled; weakening security is not a troubleshooting shortcut.

Separate airtime from broadband use

Moving a busy client to Ethernet can reduce Wi-Fi airtime use. Its downloads and uploads still share the internet connection, however. Check backups, cameras, game updates and outgoing calls when the problem occurs, then temporarily pause one nonessential activity to compare.

Use supported firmware updates from the supplier and review device-specific faults. Replace equipment when the evidence and requirements support it, rather than using a universal router-age rule. A faster plan addresses service capacity; an access point addresses a different part of the path. See the coverage options guide for their trade-offs.

Common questions

Does this test show my Wi-Fi signal strength?

No. Use supported device or router diagnostics for signal and radio information. The browser’s connection estimate cannot replace those readings.

Is 6 GHz always fastest?

No. Performance depends on supported equipment, signal conditions, channel use and the rest of the path. Compare in the actual room.

Should I replace the router first?

First compare wired, nearby wireless and affected-room performance. A router replacement will not fix every device, service or placement limitation.