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Apr 29, 2025
6 min read
How to Troubleshoot Slow Internet Connections
Slow internet speeds can be incredibly frustrating, affecting everything from video calls to streaming to simple web browsing. Before you call your ISP, there are many steps you can take to diagnose and potentially resolve the issue yourself. Understanding whether the problem is your equipment, your network setup, or your internet service provider can save you time and frustration.
Test Your Actual Speed
Start by measuring your actual internet speed:
- Use speed test sites – Speedtest.net, Fast.com, or your ISP's speed test
- Test multiple times – Speed can fluctuate throughout the day
- Test wired and wireless – Compare Ethernet vs. Wi-Fi performance
- Compare to your plan – Check if you're getting promised speeds
- Test different devices – Determine if the issue is device-specific
Restart Your Equipment
A simple restart often resolves connection issues:
- Power cycle modem – Unplug for 30 seconds, then reconnect
- Restart router – Same process as the modem
- Restart in order – Modem first, then router, then devices
- Wait for full startup – Give equipment time to fully initialize
- Regular restarts – Schedule periodic restarts for optimal performance
Check Your Network Setup
Optimize your network configuration:
- Router placement – Central location, elevated, away from obstacles
- Interference sources – Microwaves, cordless phones, other electronics
- Wi-Fi channel – Switch to less congested channel
- Band selection – 5GHz for speed, 2.4GHz for range
- Network congestion – Too many devices can slow your connection
Check for Background Usage
Other activities may be consuming your bandwidth:
- Streaming and downloads – Large files consume significant bandwidth
- Cloud backups – Automatic backups can slow your connection
- Software updates – OS and app updates running in background
- Other devices – Check what other household devices are doing
- Malware – Malicious software may be using your connection
Update Equipment and Software
Outdated equipment can limit performance:
- Router firmware – Update to latest version for performance improvements
- Network drivers – Update network adapter drivers on your devices
- Old equipment – Routers over 5 years may need replacement
- Modem compatibility – Ensure modem supports your internet speed tier
- Cable quality – Replace old or damaged ethernet cables
When to Contact Your ISP
Some issues require your internet service provider's help:
- Consistently slow speeds – Speeds consistently below your plan
- Outages in your area – Check ISP status page for reported issues
- Equipment problems – ISP-provided modem or router issues
- Line issues – Physical line problems outside your home
- Plan upgrade – Your needs may exceed current plan capabilities