Your internet is slow. Pages take forever to load, videos buffer constantly, and Zoom calls keep freezing. Before you call your ISP and wait on hold for an hour, try these fixes. Most slow internet problems are caused by something in your home, not your ISP.
Step 1: Test Your Speed First
Before fixing anything, measure what you are actually getting. Use our free Speed Test to check your download, upload, ping, and jitter.
Compare the results to your plan:
- Getting 80% or more of your plan speed? Your ISP is fine — the problem is local
- Getting less than 50%? Could be an ISP issue or a serious local problem
Step 2: Restart Your Router (Really)
It sounds too simple, but restarting your router fixes a surprising number of issues. Routers are small computers that accumulate memory leaks, stale connections, and cached errors over time.
How to properly restart:
- Unplug the router from power
- Wait 30 seconds (not 5 — the capacitors need to fully discharge)
- Plug it back in
- Wait 2-3 minutes for it to fully boot
Do this once a month as maintenance.
Step 3: Check Your WiFi Signal
WiFi is the #1 cause of slow internet. Your ISP delivers fast internet to your router — but the WiFi connection between the router and your device is the bottleneck.
Signs of WiFi problems:
- Speed is fine near the router but slow in other rooms
- Speed drops randomly throughout the day
- Some devices are slow while others (closer to router) are fast
Fixes:
- Move your router to a central, elevated, open location — not in a closet, not on the floor, not behind furniture
- Use the 5 GHz band instead of 2.4 GHz when close to the router (faster but shorter range)
- Reduce obstacles — walls, mirrors, aquariums, and metal objects block WiFi signal
- Get a mesh WiFi system if your house is large (Eero, Google Nest WiFi, TP-Link Deco)
Step 4: Too Many Devices
Every device on your network shares the same bandwidth. A typical household might have:
- 2 phones, 2 laptops, a tablet
- Smart TV streaming 4K
- Gaming console downloading updates
- Smart home devices (Alexa, cameras, thermostats)
- Background cloud backups on every device
That is 10+ devices competing for bandwidth.
Fixes:
- Disconnect devices you are not using or disable WiFi on them
- Pause large downloads when you need speed for video calls
- Use QoS (Quality of Service) on your router to prioritize important traffic
Step 5: WiFi Channel Congestion
If you live in an apartment building, dozens of WiFi networks overlap on the same channels. This causes interference and slows everyone down.
Fix:
- Log into your router (usually
192.168.1.1) - Go to WiFi settings → Channel
- Change from "Auto" to a less crowded channel
- For 2.4 GHz: channels 1, 6, or 11 are best (they do not overlap)
- For 5 GHz: most channels work well
Step 6: Old Router or Modem
Router age matters:
- WiFi 4 (802.11n, pre-2013): max ~150 Mbps — bottleneck if you pay for more
- WiFi 5 (802.11ac, 2013-2019): max ~800 Mbps — fine for most plans
- WiFi 6 (802.11ax, 2020+): max ~1 Gbps+ — best performance
If your router is more than 5 years old, upgrading can double your WiFi speed overnight.
Modem: Your ISP-provided modem/router combo is often outdated. Buying your own modem ($60-80) and router ($80-150) separately usually provides better performance than the rental unit.
Step 7: Background Usage
Things eating your bandwidth without you knowing:
- Windows/Mac updates downloading in the background
- Cloud sync (Google Drive, Dropbox, iCloud) uploading files
- App updates on every phone and tablet
- Smart home cameras streaming video 24/7
- Malware using your connection for botnets or crypto mining
Check: Open Task Manager (Windows) or Activity Monitor (Mac) → Network tab. See what is using bandwidth.
Step 8: DNS Issues
Slow DNS resolution makes every website take longer to start loading. Your ISP's DNS servers are often slow.
Fix — switch to faster DNS:
- Go to your device's network settings
- Change DNS to:
- Cloudflare:
1.1.1.1and1.0.0.1(fastest) - Google:
8.8.8.8and8.8.4.4(reliable) - Quad9:
9.9.9.9(security-focused)
Better yet, change DNS on your router so all devices benefit. Look up your DNS records with our DNS Toolbox.
Step 9: ISP Throttling
Some ISPs deliberately slow certain types of traffic (streaming, gaming, torrents) during peak hours.
How to check:
- Run our Speed Test without a VPN
- Connect to a VPN
- Run the speed test again
- If speed is significantly faster with VPN, your ISP is throttling
Fixes:
- Use a VPN to bypass throttling
- Call your ISP and complain
- Switch ISPs if available in your area
Check if your VPN is working properly with our VPN Leak Test.
Step 10: Check for Outages
Sometimes it is not you — it is your ISP.
Before calling:
- Check your ISP's status page or social media for outage reports
- Check downdetector.com for your ISP
- Ask neighbors if their internet is also slow
- Check our Speed Test — if it cannot even connect, the problem is upstream
Quick Diagnosis Flowchart
- Slow everywhere? → Restart router → still slow? → Test with ethernet cable
- Slow on WiFi only? → WiFi problem → move closer to router, check signal, change channel
- Slow on one device only? → Device problem → restart device, check for updates/malware
- Slow at certain times? → Congestion or throttling → check peak hours, try VPN
- Slow on ethernet too? → ISP problem → call them with speed test results
Test Your Connection
- Speed Test — measure download, upload, ping, jitter
- Global Ping Test — test latency to servers worldwide
- VPN Leak Test — check if your VPN is working
- DNS Toolbox — test your DNS configuration
- What's My IP — check your public IP and location