I returned mine, see post #92.
My RT-AX86U Pro had issues with 2.4 GHz, not sure if it was a defect or plain incompatibility issue.
I noticed with a WiFi analyzer and with my iPhone that 2.4 GHz irregularly was totally gone and the Brother printer (a 2021 model MFC-J5340DW) got lost (5 GHz was too weak to reach the printer).
Back to the RT-AC68U everything is stable again.
My RT-AX86U Pro had issues with 2.4 GHz, not sure if it was a defect or plain incompatibility issue.
I noticed with a WiFi analyzer and with my iPhone that 2.4 GHz irregularly was totally gone and the Brother printer (a 2021 model MFC-J5340DW) got lost (5 GHz was too weak to reach the printer).
Back to the RT-AC68U everything is stable again.