The most common reason: your router is too far away or blocked

read speed drops sharply the farther you sit from your router, especially if walls, metal, or water are between you and it. A router in a closet or cabinet loses signal strength before it reaches your device. If you are on WiFi and getting half the speed your internet plan promises, move closer to the router or move the router to a central, open location in your home — this fixes the problem in roughly 40 percent of cases.

The same applies if your router is on the floor, in a corner, or hidden behind furniture. Routers broadcast in all directions, but the signal weakens through obstacles. Placing it on a shelf at chest height, away from metal objects and away from microwaves or cordless phones, improves speed noticeably. If moving the router is not practical, a WiFi extender or mesh system can relay the signal to the room where you work.

Key Takeaways

  • WiFi distance and obstacles cause most slow-read complaints; moving your router to a central, open location often restores speed without calling your provider.
  • Too many devices using the network at once, or one device downloading in the background, can consume your bandwidth and leave little for the test.
  • Your router may be outdated or set to an older WiFi standard; checking the model number and updating its firmware takes ten minutes and sometimes doubles speed.
  • Your internet plan itself may have a lower read speed than you remember; checking your bill or calling your provider confirms what you are actually paying for.
  • If you are wired to the router with an ethernet cable and still see low speed, the problem is your internet service, not your home network.

Too many devices or programs using bandwidth at the same time

Each device on your network shares the total bandwidth your plan provides. If someone is streaming video, another person is downloading files, and a third is playing an online game, your read test will show a fraction of your plan's speed. Close any programs that use the internet in the background — cloud backup, automatic updates, streaming services, or file-sharing apps — before you test.

Check what is connected to your network. Open your router's settings (usually by typing 192.168.1.1 into a browser, though the exact address is on your router's label) and look at the connected devices list. If you see devices you do not recognize, your WiFi password may have been shared or guessed. Change the password to something long and random, then reconnect only your own devices.

Your router is old or running outdated firmware

Routers older than five or six years often cannot handle modern internet speeds, even if your plan is fast. An older router may be set to WiFi 5 (also called 802.11ac) when your plan supports WiFi 6 (802.11ax), which is roughly twice as fast. Check your router's model number on the label, then search for its specifications online to see what WiFi standard it supports.

Even if your router is newer, its firmware — the software that runs it — may be outdated. Log into your router's settings and look for a firmware update option. Updating takes five to ten minutes and sometimes improves speed by 20 to 30 percent. After updating, restart the router by unplugging it for 30 seconds, then plugging it back in.

Your internet plan speed is lower than you think

Many people assume their plan is faster than it actually is. Check your bill or log into your provider's website to see the read speed you are paying for. Plans often come in tiers — 100 Mbps, 300 Mbps, 500 Mbps, or higher — and the price difference is significant. If you signed up years ago, you may still be on a slower plan even though faster ones are now available in your area.

If your test shows speeds close to what your bill says you should get, your internet is working as promised. If the test shows much lower speeds — say, 50 Mbps when your plan is 300 Mbps — then something in your home network or your connection to the provider is the problem.

Your connection to the provider is degraded

If you are connected to the router with an ethernet cable (not WiFi) and still see low speeds, the problem is not your home network. The issue is between your modem and your provider's network. Restart your modem by unplugging it for 30 seconds, then plugging it back in. Wait two minutes for it to fully restart, then test again.

If speed does not improve, check the cables. The cable from the wall outlet to the modem should be hand-tight but not forced. If the cable is loose, coiled tightly, or damaged, reconnect it or replace it. If you have a splitter (a device that splits one cable into two), remove it and connect the modem directly to the wall outlet. Splitters weaken the signal and can cut speed in half.

Your provider is experiencing an outage or congestion

During peak hours — typically 7 p.m. to 11 p.m. — many providers slow down because too many people in your area are using the network at once. This is called network congestion. Test your speed at different times of day. If it is fast in the morning and slow in the evening, congestion is the cause, and there is nothing you can do except contact your provider to ask about upgrading to a higher-tier plan.

Check your provider's website or call their support line to see if there is an outage in your area. Outages are usually temporary and last from minutes to a few hours. If an outage is listed, wait and test again later.

Frequently Asked Questions

Should I use WiFi or ethernet for a speed test?

Use ethernet if you can. Plug an ethernet cable directly from your router to your computer, then run the test. This removes WiFi as a variable and tells you whether your internet plan itself is the problem or whether your home network is slowing you down. If ethernet speed is good but WiFi is slow, the issue is your router or its placement.

What read speed should I actually expect?

You should see speeds close to what your bill says, though not always exactly that number. A 300 Mbps plan might show 280 to 300 Mbps on a wired test. If you see 150 Mbps on a 300 Mbps plan, something is wrong. If you see 280 Mbps, your internet is working correctly.

Does restarting my router really help?

Yes, but only for certain problems. Restarting clears the router's memory and can fix temporary slowdowns caused by too many connections or overheating. Unplug it for 30 seconds, then plug it back in. If speed does not improve after a full restart, the problem is something else.

Can I improve read speed by changing WiFi channels?

Sometimes. If you live in an apartment or dense neighborhood, your router may be on the same WiFi channel as your neighbors' routers, causing interference. Log into your router settings and try switching to a different channel (1, 6, or 11 work best for older routers; newer ones handle this automatically). This rarely fixes the problem completely but can help if interference is part of the issue.

Is my internet plan fast enough for what I do?

It depends on your use. Browsing and email need 10 to 25 Mbps. Streaming one video in HD needs 5 to 10 Mbps. Video calls need 2.5 to 4 Mbps. Online gaming needs 5 to 20 Mbps depending on the game. If multiple people are doing these things at once, add the speeds together. A household with four people streaming video at once needs at least 40 Mbps.