Why is my internet so slow? 9 fixes

One two-minute test tells you whether the problem is your Wi-Fi, your equipment, or your provider — then work the fixes in order.

Start here: the 60-second checks

Before assuming the worst, run these quick checks — they resolve a surprising share of slowdowns in under a minute and tell you where to look next:

• →Reboot your router and modem — unplug for 30 seconds, then power back on
• →Run a speed test wired via Ethernet to compare against your plan (why a speed test reads lower than your plan)
• →Check if one device is mid-download, update, or cloud backup
• →Move closer to the router to rule out Wi-Fi range
• →Confirm there's no provider outage in your area (check their app or status page)

The most important test: wired vs. Wi-Fi

This one test tells you which of two very different problems you have. Plug a laptop directly into your router with an Ethernet cable and run a speed test, then run the same test on Wi-Fi in the room where it feels slow. If the wired result is close to your plan speed but Wi-Fi is much lower, your connection is fine and the problem is your Wi-Fi coverage. If even the wired test comes in far below your plan, the issue is the connection itself, your equipment, or your provider.

Almost every 'slow internet' complaint sorts into one of these two buckets, and the fixes are completely different — so it's worth the two minutes to find out which one you're dealing with before changing anything.

If Wi-Fi is the culprit

If wired speeds are fine but Wi-Fi is slow, the problem is coverage, not your connection — and no plan upgrade will fix it. Reposition the router to a central, open, elevated spot rather than a closet or the floor. Switch nearby devices to the faster 5 GHz band, keep the 2.4 GHz band for distant or low-bandwidth devices, and move the router away from other electronics and thick walls.

For a larger home or one with the router stuck at one end, a mesh system that places nodes throughout the house does far more than any single router can. Our guides to boosting your Wi-Fi and setting up mesh walk through this step by step.

If everything is slow

When even a wired test comes in far below your plan, work through these causes in turn. Peak-hour congestion on cable can drag speeds down every evening as the neighborhood logs on. An aging router or modem may simply be unable to hit your plan's speed — older DOCSIS 3.0 modems in particular bottleneck a gigabit plan, so check your modem is rated for your tier. And if you've passed a data cap, your provider may be throttling you until the next cycle.

On 5G home internet, the causes are different: a busy cell site, gateway placement and plan speed limits. See why T-Mobile Home Internet is slow.

Also worth ruling out: a device or app quietly saturating the connection (a game or OS update, a cloud backup, someone streaming 4K), and background malware on an older machine. Restart the router once more after checking, since it clears a lot of transient gremlins.

When to call your provider

If wired speeds are consistently a fraction of what you pay for, your equipment is modern and correctly rated, and no device is hogging the line, it's time to call. Ask them to check your line quality and signal levels remotely, and whether an outage or maintenance is affecting your area.

Be specific: tell them your wired speed-test results versus your plan speed and when the slowdowns happen. That framing gets you past the scripted 'have you restarted it' and toward an actual line check or a technician visit. If the problem turns out to be chronic congestion they can't fix, that's your cue to consider switching providers.

Weak signal in one room? Try our guide to boosting your Wi-Fi.

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