Didn’t see a bug section on the forums so i’m posting it here. If this is the wrong spot let me know and i’ll move it.
We have a customer with 2 sites connected over an ipsec tunnel. The tunnel is setup following typical ipsec setup (http://wiki.mikrotik.com/wiki/Routing_through_remote_network_over_IPsec). The tunnel connected successfully and no problems at all on my bench, sent it out to the customers and they had major issues with drops to their server. Initial testing (pings) showed that the ip address for the server was responding intermittently and dropping randomly. Trying to find traffic i torched the local bridge looking for anything weird and noticed that the bridge would drop all traffic the same time that the server was down.
Turns out the one change the customer made on site was to disable the wireless interface leaving the bridge consisting of the disabled wlan and the master port for the lan. For giggles i removed the bridge and moved the gateway interface ip address for the lan from the bridge to the master port on the lan side. Pings are solid now.
So in conclusion the bridge with only 1 active interface and 1 disabled interface on it would randomly drop traffic. Either due to only one interface on the bridge or the fact that the only other interface on the bridge was disabled.
Is this a feature? or a bug? If its a feature, hope you enjoyed my learning experience. If it was a bug it was a tricky one for me with my limited mikrotik experience.