Still the network losses in ROS6RC11 RB1200

It was claimed, there was removed bug about lossing connections between end units in network using bridged adapters on router.
I have to say we met those again and we were supposed to move to stable version for a while..

Customer gets adress thru DHCP IP ok, he is in ARP, but he dont ping gateway nor internet nor can be pinged from gateway. MAC layer works. Firewall is Ok.. This appears suddenly, somethimes for a while (several minutes) sometimes for a whole day.. Even some complains about that connection is slow, breaking down etc.. I cant give you suppout as it was in production part of network and we had no chance to experiment further.

My personal feeling is about it has something to do with queues, as ther router where v11 (CCR) was installed and uses clear routing it works fine, without and sing of this disease

THis is dude output on static adresses how it looks like.. This is scenario with 12 subrouters with static adresses, under each router is next 20 custs. ANd those are suddenly disconnecting, then appearing after few minutes.. The statistic looks like this:
There were no power shortages etc..
ROS11 sracky.png