Poor configuration of your WiFi router can have a big impact on your WiFi network. To better configure your internet box, you must first access the configuration pages. In general it is to enter 192.168.l.254 in the address bar of your browser, but this may depend on your operator or the model of your box. One of the first things to check is that the box is up to date.
You can update an internet box from the “advanced” or “administration” menu. Once this is done, it will be necessary to check that the channel used is not just over-used by the boxes of your neighbors. In 802.11g 192.168.l.254 there are 13 channels with a width of 20MHz each. Each channel encroaches a little on its neighbors. And when these channels are used too much, this can cause interference.
In short, it is better to choose if possible a channel little used and surrounded by other channels also less stressed. Many Internet boxes are set to default on Channel 11 or 13, which can help to find other less-solicited options. You can find the channels most used by your neighborhood with iStumbler 192.168.l.254 on mac and the following command at the Windows command prompt: netsh wlan show all.
If your router and your devices are compatible with WiFi on the 5 GHz band, configure your router for use. Connections in 5 GHz result in less interference.