Most Wi-Fi routers use the 2.4 GHz frequency band, which has 11 channels. But only 1, 6 and 11 channels are able to work simultaneously without interfering with each other. By default, many routers are configured for Channel 6. Most often, interruptions in communication are caused by interference from other routers in the vicinity.
Instructions
Step 1
Changing the router channel (most often to the 1st or 11th) helps to avoid interference. To make a meaningful choice, check the channels on which nearby networks are operating. Try the free InSSIDer and Vistumbler programs or the Meraki WiFi Stumbler web utility (tools.meraki.com/stumbler). Free mobile apps Wifi Analyzer (Android) and Wi-Fi Finder (iOS) are available as alternatives.
Step 2
Go to the Control Panel of the router by opening a new web browser window and entering the IP address of the device (usually 192.168.1.1 or 192.168.0.1). If you do not know the IP address, go to the lower-right corner of your desktop, right-click on the network icon and select Network and Sharing Center from the context menu. Specify the desired wireless network, click the "Details" button and look at the "Default Gateway" address.
Step 3
Connect to the Control Panel of the router by entering your username and password. If you do not know the password, it may not have been changed. Try entering the default password, which you can find at RouterPassword.com, or contact your ISP (if they supplied you with the router).
Step 4
Go to the wireless settings section and change the channel. Many routers support automatic channel selection. If you have just such a device, you can disable this function and set the channel manually. After saving and applying the settings, the router reboots. Reconnect to it and see if the network outages persist. If so, it might make sense to try using a different channel.