Data rate will not exceed 54 Mbps when WEP or TKIP encryption is configured

Data rate will not exceed 54 Mbps when WEP or TKIP encryption is configured

Symptom(s):

Client device's Wi-Fi data rate will not exceed 54 Mbps when wired equivalent privacy (WEP) or temporal key integrity protocol (TKIP) encryption is configured.

Cause:

The IEEE* 802.11n draft prohibits using high throughput with WEP or TKIP as the unicast cipher. If you use these encryption methods (for example, WEP, WPA-TKIP), your data rate will drop to 54 Mbps. The latest Intel® wireless adapter client drivers connect using a legacy IEEE 802.11g connection rather than failing to connect altogether, which complies with the IEEE 802.11n draft.

Solution:

1. Contact your Wi-Fi access point (AP) or router manufacturer to download the latest firmware version, or get information on particular models supporting High Throughput.
2. Disable packet bursting or similar features
3. Configure the Wi-Fi client device's profile to use Wi-Fi Protected Access* (WPA2-AES or WPA2-TKIP). 
4. Configure the AP or router to match the client profile.

Note Some AP or router manufacturers may not have updated firmware solutions for devices sold outside of the United States.

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® 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-025643
Last Modified: 09-Apr-2014
Date Created: 28-Feb-2007