Question Trying BIOS update with BIOS utility package for X11 DP boards, system LAN (X722) SoC LAN may unexpectedly disappear after BIOS upgrade. The user may stop at CTRL + ALT + DEL combination key after attempting to reboot the server. What is the temporary solution and how to resolve this problem? Answer This is due on BIOS flash utility problem. For temporary solution is to load system BIOS by pressing F3. And then apply to save the setting by F4. LAN will be shown after doing this. For further, the flash utility will be updated for this problem fix. By using Supermicro OOB (out-of-band) BIOS upgrade or using SuperDoctor5, the problem will not happen and the user will not suffer from such problem. Was this FAQ helpful? YES      NO Enter Comments Below: Note: Your comments/feedback should be limited to this FAQ only. For technical support, please send an email to support@supermicro.com.  Enter your email address below if you'd like technical support staff to reply:  Please type the Captcha (no space) X Q F L FAQ Stats FAQ ID Related Category / Keyword Date Posted Code 27959 BIOS: - AMI BIOS 05/14/18     Print Answer