no matter sw release .. no matter cable type or lenght … it’s any way to fix this type of problems?
i attach a print screen for more accuracy
i have 5 pieces of rb750 … all have that problem … i don’t like to retier them 
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What type and how much traffic is going through? What devices are connected to each interface? Are you using standard 12V/0.5A power supply? Also, please, send supout.rif file to support@mikrotik.com
sent it
Did you find the problem, I have something similar. Thx. Dom.
Anything on this yet ? i have the same error i am using Air Fiber from Ubiquiti on the port im getting the RX error let me know if there is a solution to it.
Ive changed the cables , verify the Speed of each nic and everything seems great
vacarosie200 GOOD NIGHT
Solved the problem HERE THE SAME DEFECT