Have you ever experience that when you changing or hunting mac address on any wimax tool it can't access on wimax security page of your modem?
The solution here is just uninstall the Update for Microsoft Windows (KB3025390).
- Open the run or just pressing Windows Key+R on your keyboard then type appwiz.cpl.
- Click on the View Installed Updates.
- Look for Update for Microsoft Windows (KB3025390).
- Click Uninstall and wait the uninstaller to finish.