Glad you got sorted, and don't worry just added another 10GB switch with more ports ...As a long time lurker I've often visited this thread in the past. I finally got my act together yesterday and replaced my Asus RT-AX5300 router with a Mikrotik CCR1009-7G-1C-1S+ and 10GBE SFP+ transceiver. After a couple of minor teething issues I successfully got the new router to connect to my Superhub 4 in modem mode using the balance-rr config information supplied here. It's been giving me connections in excess of 1000Mbps reliably since I set it up last night.
So, thanks for posting this (but don't tell my wife! )
Just wondering when the 2.2Gbps trial is going to roll out as I really want a better upload speed