There is Interference From Other Devices

If you have 802.11b or 802.11g network hardware, it uses the 2.4 gigahertz (GHz) frequency. Other devices that use this frequency include microwave ovens and cordless phones. If you have 802.11a network hardware, it uses the 5 GHz frequency. Some cordless phones also use this frequency. These devices can cause interference between your computer and the network.

There are two things you can try in this situation:

  • If any devices like these are near your computer, turn them off temporarily or move them farther away.
  • Change the router or access point settings to use a different wireless channel, or set the channel to be selected automatically if it is set to a fixed channel number. Sometimes one wireless channel is clearer than others. In the United States and Canada, you can use channels 1, 6, and 11. Check the information that came with your access point or router for instructions about setting the wireless signal channel.

Note: This information provided by Microsoft.