Im having problem with ether2 to ether2 (possibly ether3 but i did not checked) connection on RB433 ,
Problem happend for me on 3 different RB433 boards.
Its looks like RB433 to RB433 ethernet link its not compatible or something like this (ether link goes down).
This happend sometimes: RB433 ether2 to RB433 ether2 , ethernet link is sometimes not detected or stops working and disconnect after some time. Adding swith in middle resolves problem.
What could be reason (its not cable problem) ?