I have an XPS8700 desktop running Windows 8.1. After upgrading to Windows 10, the network controller is not recognized and I cannot connect to any network. I installed the new driver found on the Dell website but it did not fix my problem. I returned to Windows 8.1 and my network controller works fine again. Is there any known problem with the Realtek network controller on the XPS8700 for Windows 10? Or do I miss something?