Right-click on the "Unknown Device" in , select Properties > Details , and choose Hardware Ids from the dropdown. If you see WIMAX\BPENUM , you definitely need the Intel WiMAX driver. 2. Download the Correct Intel Package
Use this heuristic for a 5ms frame, 10 MHz channel: wimax bpenum
There are three common reasons why you might see a "WiMAX BPENUM" error: Right-click on the "Unknown Device" in , select