Before you call your ISP or upgrade your plan, try these proven fixes. Most slow internet problems can be solved in under 10 minutes.
Why Your Internet Suddenly Gets Slow
Slow internet is one of the most frustrating modern problems — and it’s almost never as simple as your ISP being terrible. In most homes, the culprit is something much closer: your router, your devices, your network settings, or the placement of your equipment.
Understanding why internet slows down puts you in control. Speed issues generally fall into a few categories: router problems, Wi-Fi interference, outdated equipment, too many devices competing for bandwidth, or a genuine problem with your ISP connection. Each has a different fix.
Step 1: Run a Speed Test First
Before you do anything else, establish a baseline. Go to fast.com or speedtest.net and run a test. Note the download speed, upload speed, and ping (latency).
Now compare that to the plan you’re paying for. If you’re paying for 150 Mbps download and you’re getting 145 Mbps, your internet is working perfectly — your problem is likely a device issue. If you’re getting 15 Mbps on a 150 Mbps plan, something is wrong with your connection or equipment.
For the most accurate result, connect a laptop directly to your router with an ethernet cable and run the test. If wired speeds are fine but Wi-Fi is slow, your problem is specifically with your wireless setup.
Step 2: Restart Your Router Properly
This sounds obvious, but most people do it wrong. Don’t just press the power button — unplug the router completely from the wall. Wait a full 60 seconds (not five seconds). Then plug it back in and wait 2-3 minutes for it to fully reconnect before testing again.
Routers are essentially small computers, and like all computers, they accumulate errors and memory issues over time. A proper power cycle clears these issues. Many IT professionals recommend restarting home routers monthly.
If you have a separate modem and router, restart both — modem first, then router once the modem is fully online.
Step 3: Check Your Router’s Location and Placement
Wi-Fi signal strength drops dramatically with distance and obstacles. Walls, floors, appliances, and even fish tanks can significantly reduce signal quality.
Your router should be placed centrally in your home, elevated (on a shelf or table rather than the floor), and out in the open rather than hidden in a cabinet or closet. Cabinets are particularly damaging to Wi-Fi performance — they can reduce signal strength by 50% or more.
Keep your router away from microwaves, baby monitors, and cordless phones, which all operate on frequencies that interfere with the 2.4 GHz band that older devices use.
If parts of your home consistently have poor coverage, a mesh Wi-Fi system (from brands like Eero, Google Nest, or TP-Link Deco) is one of the best investments you can make for whole-home coverage.
Step 4: Check Which Devices Are Using Your Bandwidth
Every device connected to your network competes for available bandwidth. A 4K Netflix stream uses 15-25 Mbps. A large system update downloading in the background can temporarily consume your entire connection.
Log into your router’s admin panel (usually accessed by typing 192.168.1.1 or 192.168.0.1 into your browser) and look for a section showing connected devices and their bandwidth usage. Most modern routers display this clearly.
Look for devices you don’t recognize — this could indicate unauthorized users on your network. Change your Wi-Fi password if you see anything suspicious, and make sure your network is secured with WPA3 or WPA2 encryption.
Step 5: When to Call Your ISP
If you’ve tried all of the above and wired speeds are consistently far below what you’re paying for, it’s time to contact your internet service provider.
Before you call, document at least three speed test results taken at different times of day, all with a wired connection. This data prevents the call from turning into your word against theirs. Request that a technician check the signal levels at your home — coaxial cable connections can degrade over time, and the line from the street to your house may need replacing.
In Canada, the CRTC’s Broadband Fund and consumer complaint process (through the Commission for Complaints for Telecom-television Services, or CCTS) provides recourse if your ISP is consistently failing to deliver the speeds advertised in your plan.
