Issue with RB2011UiAS-2HnD-IN gigabit ports in switch

Hello,

I’m having an issue when I put 2 gigabit ports in a switch. After a few minutes (or sometimes seconds) with high traffic I see that there is still communication between those ports but I am no longer able to communicate with these ports from other interfaces that are bridged (the master switch port is also bridged). Only disabling/enabling the master switch port solves the issue. When I put the 2 gigabit ports in the bridge there is no issue but traffic is of course much slower.

This issue is happening even when the ports are forced to 100Mbit instead of Gigabit. A simple cheap 100Mbit switch works just fine. Cables etc have been replaced and are gigabit certified.

Anyone seeing the same issue ?

(ROS 6.12, latest FW)