I have Media Converter Fx to Tx it's working with Cisco,Tenda,Tp-Link
But don't working with Mikrotik !!!!!
I check it with
Rb 1009
RB 1036
CRS 125
but don't working with all the Mikrotik Servers
the Mikrotik Read the Tx only So it don't send DHCP Or PPPOE-Server