Once upon a time I was changing wireless settings on my RB435G device serving as backhaul switch.
Suddenly it stopped pinging from cable, but was still visible from wireless.
Rebooting, new firmware and upgrading ROS didn’t help. Resetting doesn’t help too.
I can now use it through serial console, it shows 0 packets received on any ethernet port, but link and speed are shown correctly.
Is it hardware fault? Maybe upgrading ROS will help, but how can I upgrade it via serial? (at last I could setup wireless again and upgrade, will try tomorrow).