Wireless Products
Intel® Centrino® Advanced-N + WiMAX 6250
Limitation on Simultaneous Use of WiMAX and Wi-Fi

Troubleshooting topic
Limitations on simultaneous use of WiMAX and Wi-Fi (or any of its dependent technologies like Intel® Wireless Display, and Intel® My WiFi Technology)

Background
Intel® Centrino® wireless adapter identified below is a single hardware module that combines Wi-Fi and WiMAX technologies. Both technologies share the same radio and only one technology can be in operation at one time. Radio control is assigned to a given technology based on user input or a connection manager intelligently managing both interfaces. Intel® Wireless Display technology uses Intel® My WiFi technology (Intel® MWT) allowing users to wirelessly project laptop content onto TV.
Intel® MWT allows simultaneous Internet and Personal Area Network (PAN) connectivity over Wi-Fi.

Cause
Intel® Wireless Display technology needs a Wi-Fi connection and hence control over the radio. WiMAX cannot operate during that time. If Intel® Wireless Display / Intel® MWT / Wi-Fi are in use, WiMAX is not available for use.

Similarly, if WiMAX has control over radio (whether user is connected to Internet or not), Intel® Wireless Display / Intel® MWT / Wi-Fi cannot function.

Solution
This limitation is by design and there is no workaround for it. User needs to delegate radio control to Wi-Fi or WiMAX using one of the following methods:

  1. Intel® PROSet/Wireless WiMAX Connection Utility task tray icon.
  2. Operator or PC-OEM provided Connection Manager application.

Hardware affected
Intel® Wireless Display capable platforms with Intel® Centrino® Advanced-N + WiMAX 6250.

This applies to:

Intel® Centrino® Advanced-N + WiMAX 6250
Intel® Centrino® Wireless-N + WiMAX 6150

Solution ID: CS-031790
Last Modified: 27-Oct-2014
Date Created: 05-Aug-2010
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