I own an asrock z77 extreme pro4 motherboard and recently ran into a code 31 error for all my wan miniport drivers. I uninstalled my wan miniports and tried reinstalling them, but they won't reinstall and the wan miniport devices are not even listed on the device manager page. I know that it's a registry related issue and everything is working except for the wan miniports and because the wan miniports are not working, my network adapters are not working. Basically, does anyone know a fix for re installing my wan miniport drivers after removing them due to a code 31 error and then them disappearing from device manager entirely?