Positive Computer
Troubleshooting Guide

WiFi Not Working? Common Causes & Fixes

WiFi issues can come from the router, the connected device, or the network setup itself — narrowing down which one saves a lot of guesswork.

Common Causes

  • Router or modem needs a restart — Routers can develop minor issues over weeks of continuous uptime that a simple restart resolves.
  • Too many devices or interference on the same channel — Crowded WiFi channels, especially in apartment buildings or offices, can cause slow or dropping connections.
  • Outdated router firmware or driver issues on the device — Both the router and the connecting device's WiFi driver can develop compatibility issues over time.
  • Physical distance or obstruction from the router — Walls, floors, and distance all reduce WiFi signal strength, especially in larger homes or offices.

Quick Things You Can Check Yourself

  • Restart the router and modem (unplug for 30 seconds, then reconnect)
  • Check if other devices are also affected, or just one
  • Move closer to the router to see if it's a range/signal issue
  • Check if the issue is with WiFi specifically or the internet connection itself

When to Call a Professional

If the issue affects only certain areas of an office or home consistently, or multiple devices are affected at once, it likely needs a proper WiFi coverage assessment rather than router restarts.

Need this fixed rather than diagnosed yourself?

Tell us what's happening and we'll give you a straight answer on cost and timeline.

FAQ

Frequently Asked Questions

Why is my WiFi fine in one room but not another?

This is almost always a coverage/range issue — solvable with better access point placement or a mesh setup rather than a faulty router.

Do I need a new router or just better placement?

Often it's placement and coverage rather than the router itself — a proper site assessment can tell you which before you spend on new hardware.

Can office WiFi issues be fixed permanently?

Yes, with a properly planned setup — access point placement based on the actual space, not just plugging in one router and hoping.