Today I have updated the x99 DMG Kexts to improve functionality. Thank you goes out to Jens Walter for his discovery to fix the onboard LAN from disconnecting. Also added is the Asus Onboard Bluetooth Fix and updated 3rd party USB 3.0 Kexts for those board who need the driver.
This week I will be addressing the issue with the second LAN port not working on Dual Intel LAN ports.
Please report if you are having current issues with USB as I can address this is the SSDT but I need to know about it as the boards I have been able to test do not have this issue but I have not tested every LGA 2011-3 Motherboard.
Dual LAN is now working with the updated Kexts.