Possible Reasons For WiFi Network Connections Dropping

On home or public wireless networks, your WiFi connection might drop unexpectedly for no obvious reason. This kind of networking problem is especially frustrating. It's also more common than you might think. Fortunately, solutions exist. Consult this checklist to help determine why it is happening and how to prevent it.

WiFi Radio Interference
Radio signals from various consumer electronic products can interfere with WiFi wireless network signals. For example, cordless phones, Bluetooth devices, garage door openers and microwave ovens can each take down a WiFi network connection when powered on. You can move your network equipment or (on home networks) change some WiFi radio settings to avoid this problem, including changing the WiFi Channel to Avoid Interference

Insufficient WiFi Network Range and Power
Even without interference from other equipment, WiFi connections can drop occasionally on devices located near the network's edge. WiFi links generally become more unstable with distance. Relocating your computer or other gear is a simple but not always practical solution. Otherwise, consider antenna upgrades and other techniques to improve wireless signal transmission and reception.

Unknowingly Connecting to the Wrong WiFi Network
If two neighboring locations run unsecured WiFi setups with the same network name (SSID), your devices may connect to the wrong one without your knowledge. This scenario tends to cause the interference and range problems described above. Additionally, your computers would lose connection whenever the other network is turned off, even if your preferred one remains functional. Take proper security measures to ensure your computers connect to the right network.

Incompatible Software Packages Installed
WiFi network connections may start failing on a computer due to incompatible software installed and running there. This includes operating system patches, operating system services, and other software that modifies the networking capabilities of the operating system. Keep records of each time you install or upgrade software on your computers, and be prepared to uninstall any incompatible software you've added recently.

Overloading / Overheating the Router (Access Point)
Owners of some wireless routers (and access points) have reported dropped connections during times of heavy network utilization. This can occur during, for example, online gaming or while copying large files. Routers can in theory become overloaded with too much data and fail temporarily. If a router's temperature increases too much, it may also fail until cooled. Install routers (access points) in places with good airflow. Exchange the router if it won't support your usage patterns.