Troubleshooting

Why Is My Internet Slow? 15 Causes and Fixes

by Marcus Reed Updated Apr 12, 2026

Common causes of slow internet and how to fix them to restore full speed. Follow these troubleshooting steps to diagnose and fix the problem. For additional help, see Google Android Support.

Why Is My Internet Slow? 15 Causes and Fixes
Figure 1 — Why Is My Internet Slow? 15 Causes and Fixes

Quick Fixes to Try First

  1. Restart your router — unplug for 30 seconds and plug back in. This fixes most issues.
  2. Restart your device — toggle WiFi off and on, or restart your phone/computer.
  3. Check cables — ensure all Ethernet and power cables are securely connected.
  4. Check for ISP outages — visit your ISP's status page or call them.

Advanced Troubleshooting

Still not working? Check your router's IP and login to the admin panel to review settings.

Video Tutorial

Related Guides

Pro Tip: 80% of WiFi problems are solved by a simple router restart. Before doing anything complex, unplug your router for 30 seconds.

Key Takeaways

  • Restart your router first — this fixes 80% of issues
  • Test with Ethernet to determine if the problem is WiFi-specific
  • Check your DNS settings if websites won't load
  • Contact your ISP if all devices are affected — it may be their issue

Frequently Asked Questions

Why is my WiFi not working?

The most common causes are router glitches, ISP outages, or WiFi interference. Start by restarting your router.

How do I fix internet connection problems?

Restart your modem and router, check for ISP outages, change DNS servers, and update firmware.

Should I call my ISP?

If the problem persists after trying all steps, contact your ISP. The issue may be on their end.

Marcus Reed

About Marcus Reed

Marcus Reed is a network technician and technical writer who has configured and troubleshot routers and modems across thousands of home and small business installations for major ISPs including Comcast, AT&T, and Spectrum. That field experience across different hardware, firmware versions, and ISP environments gives him a practical command of what goes wrong and why. At RouterHax, he covers brand-specific router setup guides, ISP modem compatibility, and step-by-step troubleshooting tutorials.

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