encinoman

Yes, it has a router. What is a 'double NAT'. And what do you mean by 'the TP-Link'?

I've been trying to change the WAN Port to Allow Remote Access. I've selected a port and hit Apply, then in my router's settings setup corresponding custom service with the external port number the same as the WAN Port in Unraid, and the Triggering port as the original port number in Unraid before i made any changes. No dice. When I hit the Check button the pop up tells me that the server is unreachable from the outside. Is anyone here familiar with TP-Link's GUI?

Okay, I have tried this now but no luck. I enabled UEFI boot option when preparing the flash drive and I enabled in the BIOS to boot from legacy or UEFI. Thanks for your help so far, but any other thoughts?

With legacy in which setting? And I use the word BIOS interchangeably with UEFI, is there a choice on this mobo?

I can't get Unraid to install on my Supermicro X9SCM-F. Tried various BIOS settings for USB and boot order but no love, just spins its wheels with no display out. Does anyone have experience with this BIOS?