Slow or Dropping WiFi: Causes and Effective Solutions

First: Distinguish WiFi Slowness from Internet Slowness

Simple test: Connect your computer directly to the router with an Ethernet cable and run a speed test (speedtest.net). If speed is good wired but bad on WiFi, it's a local network problem.

Common Causes of Slow WiFi

1. Router placed poorly

WiFi signal is blocked by: thick walls (concrete, brick), floors, microwave ovens, metal surfaces.

Solution: Place your router high up, in an open central location. Never in a closet or behind furniture. 2. Too much distance

WiFi has limited range. Beyond ~15-20 meters (depending on obstacles), signal weakens significantly.

Solutions:

• WiFi extender: plugs into a socket and extends signal
• Powerline (CPL): uses electrical wiring to carry internet between rooms
• Mesh network: multiple access points creating a unified network — best for large homes

3. Neighbor interference

In a building, dozens of neighboring WiFi networks can interfere on the same radio frequencies.

Solution: Change your router's WiFi channel. In your router interface (usually 192.168.1.1), find WiFi settings and change the channel (try 1, 6, or 11 for 2.4 GHz band). 4. Router needs a restart

A router running for weeks can have memory issues.

Solution: Restart your router monthly. This solves 30% of problems. 5. Too many connected devices

If 10 devices are connected and several are downloading simultaneously, bandwidth is divided.

5 GHz vs 2.4 GHz Band

• 2.4 GHz: more range, slower, more interference-prone
• 5 GHz: faster, shorter range (best near the router)

If your device is close to the router, connect to the 5 GHz network for better performance.

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