Why is my internet slow? 10 checks that actually help

First, identify what is actually slow

A slow website does not always mean a slow internet connection. The website itself may be overloaded, one app may be downloading in the background, or a single device may have a WiFi problem. Before restarting everything, open two or three familiar services on another device. If only one website or app struggles, your home connection probably is not the cause.

Run a speed test on the affected device, then repeat it on a second device in the same room. Compare download, upload, ping and jitter rather than looking only at the largest number. High ping or jitter can make calls and games feel bad even when download speed looks normal.

Measure broadband bandwidth, ping and jitter →

Compare WiFi with a wired connection

If possible, connect a laptop to the router with Ethernet and test again. A good wired result with a poor wireless result points to WiFi coverage, interference or device capability. Poor results on both wired and wireless connections point more strongly toward the modem, provider or internet plan.

Do not compare a phone on WiFi with a provider's advertised maximum as if they are the same measurement. The plan describes the connection delivered to the router under defined conditions. Walls, distance, radio congestion and older device hardware all affect what reaches a wireless device.

Pause competing traffic

Cloud photo backups, game updates, security cameras and 4K television can consume bandwidth without being obvious. Pause large transfers and disconnect nonessential devices for one test. If performance immediately recovers, the connection needs better traffic management or more capacity—not necessarily a new router.

• Check computers and consoles for operating-system or game updates.
• Pause cloud drives, photo sync and online backup.
• Lower streaming quality temporarily on televisions.
• Review unfamiliar devices in the router's connected-device list.

Restart in the right order

A restart clears temporary faults, but the order matters when the modem and router are separate. Unplug both. Wait about 30 seconds, power the modem first, and let it fully reconnect. Then power the router and wait for WiFi to return. Repeatedly restarting equipment can hide a persistent line problem, so record results if the fix lasts only a few hours.

Also inspect cables and power supplies. A loose Ethernet connector, damaged coaxial cable or overheating router can cause intermittent performance that software changes will not fix.

Test at different times

Run comparable tests in the morning, during the evening peak and late at night. Use the same device, location and connection method. A large, repeatable evening drop may indicate local provider congestion. A drop that follows where you move around the home is more likely WiFi coverage.

Save the date, time, result and whether the test was wired. That evidence is far more useful when speaking to support than saying the internet sometimes feels slow.

When to contact your provider

Contact the provider after a wired device repeatedly tests far below the expected plan speed, the modem frequently loses connection, or performance drops at the same times each day. Share several results and the troubleshooting already completed. Ask the provider to check line levels, errors, local outages and whether the modem is correctly provisioned for the plan.