Hi,
I have two RB433 linked together with an ethernet cable. Both boards have been upgraded to RouterOS Version 4.5 and firmware 2.23. On the one board the cable is connected to ether1 and on the second board the cable goes to ether2. On both boards the ethernet is part of a bridge for a wireless point-to-point link. When I remove them from the bridge they work fine, but when connected to the bridge I have loss. I am having 60% loss when I ping from one board to the other. I have replaced the lan cable. The cable is about 2 meters long. Any ideas?