"My internet is slow" is the second most common complaint we hear, right after "my computer is slow." And half the time, the internet isn't actually the problem — the computer is. But the other half, it genuinely is your connection, and the fix is usually simpler than you think.
Here's how to figure out which one it is and fix it yourself.
Step 1: Run a Speed Test
Before troubleshooting anything, establish a baseline. Go to speedtest.net or fast.com and run a test. Write down three numbers:
- Download speed — this is what matters for browsing, streaming, and video calls
- Upload speed — matters for Zoom, uploading files, and cloud backup
- Ping/latency — matters for gaming and video call quality
Now compare your results to what you're paying for. If you're paying for 100 Mbps and getting 90+, your internet is fine — the problem is elsewhere. If you're getting 20 Mbps on a 100 Mbps plan, keep reading.
Step 2: Restart Your Router (the Right Way)
Yes, it's a cliché. It also works about 40% of the time. But don't just unplug it for 5 seconds — do it properly:
- Unplug the power from both your modem (the box from your ISP) and your router (the box with the WiFi)
- Wait 60 full seconds — this clears the device's memory and forces it to renegotiate with your ISP
- Plug the modem back in first and wait for all lights to stabilize (1-2 minutes)
- Then plug in the router and wait for it to fully boot
- Run another speed test
If this fixes it, your router's memory was full or it had lost sync with your ISP. If it keeps happening every few days, your router may be failing.
Step 3: Check for WiFi Interference
WiFi is radio, and radio is affected by physical obstacles and competing signals. The most common killers:
- Distance from router: WiFi signal drops dramatically through walls. Two walls = roughly half the speed.
- Microwave ovens: They operate on 2.4 GHz — the same frequency as WiFi. Running the microwave can kill your WiFi signal.
- Neighbor's WiFi: In apartments, dozens of networks compete for the same channels. Use a WiFi analyzer app to find a less congested channel.
- Baby monitors, Bluetooth speakers, cordless phones: All compete with 2.4 GHz WiFi.
Quick Fix: Switch to 5 GHz
Most modern routers broadcast two networks — one on 2.4 GHz (longer range, slower, crowded) and one on 5 GHz (shorter range, faster, less interference). If your router shows two network names (like "HomeWiFi" and "HomeWiFi-5G"), connect to the 5 GHz one when you're in the same room as the router.
Step 4: Check What's Using Your Bandwidth
A single device streaming 4K video uses 25 Mbps. Two kids on Netflix plus a Zoom call can max out a 100 Mbps connection easily. Common bandwidth hogs:
- Streaming video (Netflix, YouTube) — 5-25 Mbps per stream
- Cloud backup (Google Drive, iCloud, OneDrive syncing large files) — can consume all your upload bandwidth
- Game downloads/updates — Steam, Xbox, PlayStation updates can be 50-100 GB
- Security cameras — multiple cameras uploading HD video eat upload bandwidth constantly
- Malware — some malware uses your bandwidth for crypto mining or as a bot node
192.168.1.1 or 192.168.0.1) and look for a "connected devices" or "traffic" page. This shows which devices are using the most bandwidth right now.
Step 5: Optimize Router Placement
Router placement matters more than most people realize:
- Elevate it: Put it on a shelf or mount it high on a wall, not on the floor behind furniture
- Centralize it: Place it in the center of your home, not in a corner or closet
- Keep it in the open: Not inside a cabinet, behind a TV, or near a fish tank (water blocks WiFi)
- Away from metal: Metal shelving, filing cabinets, and refrigerators reflect and absorb WiFi signals
Step 6: Update Router Firmware
Router manufacturers release firmware updates that fix bugs and improve performance. Most people never update their router firmware because it's not automatic.
- Log into your router's admin page (check the label on the bottom for the address and password)
- Look for a Firmware or System Update section
- Download and install the latest version
- The router will restart — this takes 2-3 minutes
Step 7: Change Your DNS
Your ISP's DNS servers (which translate website names to IP addresses) are often slow. Switching to a faster DNS can make websites load noticeably quicker:
- Cloudflare:
1.1.1.1and1.0.0.1— fastest, privacy-focused - Google:
8.8.8.8and8.8.4.4— reliable, widely used
You can change DNS on your router (affects all devices) or on individual computers in network settings.
When It's Your ISP's Problem
If you've tried everything above and speeds are still terrible:
- Check downdetector.com for outage reports for your ISP
- Test at different times of day — ISPs oversell bandwidth, and evening hours (7-10 PM) are the worst
- Call your ISP and ask them to check the signal quality on your line — they can run remote diagnostics
- If you're on DSL and far from the exchange, you may be getting the maximum speed your line can physically support
When It's Your Computer, Not Your Internet
Sometimes "slow internet" is actually a slow computer struggling to render web pages. Signs the problem is computer-side:
- Speed tests show good numbers but websites feel slow
- Other devices on the same WiFi are fine
- Your browser has 15+ extensions installed
- Your computer is generally slow, not just online
If that sounds familiar, check out our complete guide to fixing a slow computer.