When you say latest firmware, which do you mean exactly? The one from August on the ASUS website or one of the betas?
Has anyone had any luck with with the Gaming ports using an Xbox One? Whenever I try to use them, my log file floods with “link up, link down” messages every couple seconds over and over non stop after putting the Xbox in standby mode. The messages stop once I turn it on again, but I can’t tell if this port is hurting my gaming performance or not. It could be placebo, but things always seem worse when using those ports so I switch back to a non-gaming port.