WiFi & Router Troubleshooting

Router & network problems rarely announce themselves with clear explanations — you just lose internet at the worst possible moment. This category collects 45 practical guides built around one goal: getting you back online as fast as possible, without guesswork. Whether your WiFi has slowed to a crawl, a device refuses to connect, or your connection keeps dropping every few hours, the fix is almost always traceable to one of three places: your router, your device, or your ISP.

How to Diagnose Any Network Problem

The most common troubleshooting mistake is calling your ISP before checking closer to home. Follow this order first — it resolves the majority of issues before you ever need to pick up the phone:

1. Reboot your router and modem. Unplug both for 30 seconds, then plug the modem in first and wait for it to sync before powering the router back on. This alone clears a surprising number of problems.
2. Check your cables. A loose coax or ethernet cable between your modem and router is a common cause of intermittent drops and "no internet" errors.
3. Restart the affected device. If only one device has trouble, the problem is almost certainly local to that device, not your network.
4. Check & change your DNS settings. Slow-loading pages and DNS failures often have nothing to do with your connection speed. See the guide on how to change DNS on your router for a quick fix.
5. Call your ISP. Only after ruling out the above should you contact your provider — bring notes on what you tested so the call goes faster.

Most Common Problems Covered Here

• Slow WiFi — channel congestion, interference, and band steering issues covered in the slow WiFi troubleshooting guide and the guide on changing your WiFi channel
• Dropped connections — intermittent disconnects caused by firmware bugs, overheating, or ISP line problems
• DNS failures — sites that won't load even when your connection is active
• "No internet" errors — connected to WiFi but no actual access, often an IP conflict or gateway issue
• IP address conflicts — two devices claiming the same address, solvable once you find your router's IP address and adjust DHCP settings
• Devices not connecting — authentication failures, hidden SSIDs, and MAC filtering problems
• ISP-related outages — how to confirm the problem is upstream & what to tell your provider

If your network feels compromised or sluggish, it's also worth checking who is on your WiFi — an unauthorized device can silently consume bandwidth. For deeper issues, a full router reset is often the cleanest path forward. Pick the problem that matches your situation from the guides below.