Wireless Products
Intel® Wi-Fi Products
Interference from 2.4 GHz cordless telephones

Symptom(s):
When a 2.4 GHz cordless telephone is powered on or in use near a wireless LAN access point, network adapter, or another wireless device, the following issues may occur:

  • Connection disconnects
  • Pauses or disruptions in data transmissions
  • Erratic connection behaviors

Cause:

2.4 GHz cordless telephones operate at the same frequencies as 2.4 GHz 802.11b, 802.11g and 802.11n wireless LAN access points, network adapters, and other devices (Bluetooth*, baby monitors, garage door openers, some wireless toys, etc.).

Solution:

One of the following suggestions may help resolve the issue.

  • Change the location of the Access Point and/or the base of the cordless phone.
  • Switch the channel on the Access Point.
Note Many 2.4 GHz cordless telephones operate with what is called frequency hopping technology. This technology utilizes the entire frequency range also used by 802.11b, 802.11g and 802.11n wireless devices. Thus changing the channel of the Access Point may not eliminate the interference problem.
  • Operate the phone with the antenna lowered, if that is an option.
  • Use a phone that is not a 2.4 GHz phone.

This applies to:

Intel® Centrino® Advanced-N + WiMAX 6250
Intel® Centrino® Advanced-N 6200
Intel® Centrino® Advanced-N 6205
Intel® Centrino® Advanced-N 6205 For Desktop
Intel® Centrino® Advanced-N 6230
Intel® Centrino® Advanced-N 6235
Intel® Centrino® Ultimate-N 6300
Intel® Centrino® Wireless-N + WiMAX 6150
Intel® Centrino® Wireless-N 100
Intel® Centrino® Wireless-N 1000
Intel® Centrino® Wireless-N 1030
Intel® Centrino® Wireless-N 105
Intel® Centrino® Wireless-N 130
Intel® Centrino® Wireless-N 135
Intel® Centrino® Wireless-N 2200
Intel® Centrino® Wireless-N 2200 For Desktop
Intel® Centrino® Wireless-N 2230
Intel® Dual Band Wireless-AC 3160
Intel® Dual Band Wireless-AC 7260
Intel® Dual Band Wireless-AC 7260 for Desktop
Intel® Dual Band Wireless-N 7260
Intel® PRO/Wireless 2000 LAN Access Point
Intel® PRO/Wireless 2011 LAN Access Point
Intel® PRO/Wireless 2011B LAN Access Point
Intel® PRO/Wireless 2200BG Network Connection
Intel® PRO/Wireless 2915ABG Network Connection
Intel® PRO/Wireless 3945ABG Network Connection
Intel® PRO/Wireless 5000 LAN Dual Access Point
Intel® WiFi Link 1000
Intel® WiFi Link 5300 and Intel® WiFi Link 5100 products
Intel® WiMAX/WiFi Link 5350 and Intel® WiMAX/WiFi Link 5150 products
Intel® Wireless WiFi Link 4965AGN
Intel® Wireless-N 7260

Solution ID: CS-004818
Last Modified: 09-Apr-2014
Date Created: 06-Jan-2003
Back to Top