RB 1000 Hangs with no apparent reason

I Have an RB 1000 that is used as PPPoE Hub. Normaly it haves 400 PPPoE clients connected. In the last week the routerboard is hanging with no aparent reason. Im using router OS 3.13 and i have upgaraded the RB memory to 1 Gb and even so the routerboard keeps hangin. Can somebody help me?

Im attatichng a config exported file from RB 1000

Thanks and sorry about my bad english
rb-1000.rsc (23.8 KB)

No clues people?

upgrade to 3.27, if its still happening generate a supout and submit a ticket with it and some explanation about what happening.

is it normal to bridge your wan to your pppoe bridges, and have an IP address directly on wan port?

also, your radius IPs and secrets were in that export, not sure if you knew that.

Thanks for the warning about the radius secret, i didnt see that. I will change rigthway. About the bridges, they exists cause i have another authentication method in my network, before i start using the Mikrotik as the PPPoE hub, and i didnt removed that authentication yet, so i need the briges.
I have tried to upgrade to the newest RouterOS version, but for some reason i still dont know the queues and the firewall rules stops working with any newer version of the RouterOS.

Any other options?