Yes this problem is still alive.
I’ve wrote about a similar to the above solution here (about 10sec downtime): http://forum.mikrotik.com/t/rb435g-failing-ethernet-interface/51769/1
@janisk: aslo look at:
http://forum.mikrotik.com/t/10-equipment-rb435g-presenting-the-same-problem/52227/1
http://forum.mikrotik.com/t/serious-request-for-the-new-year/52849/1
In short about “Ethernet ports locking up/stop sending” I found that:
- It happens on RB435G but not on RB600A. Might be related to that switch chip in RB435G???
- Only happens when ethernet port sends traffic. If it only receives never had happened. Might be ethernet or switch chip Tx counters/buffers overflow ???
- When it happens disable/enable the ethernet port doesn’t resolve it. But toggle the state of “switch-all-ports=yes or no” makes the port work again, without a reboot.
- Doesn’t matter how port is connected: 10m FTP to a Gigabit dumb switch or 30m FTP to a Gigabit L2 Managed switch both without PoE.
- Temperature doesn’t matter.