eth goes off

Hello, I was trying to reset settings and started to search restart button on RB 333 and I found it pushed, after that all eth. ports goes off for 2 seconds comes for 10 seconds. So every 10 seconds ethernet goes off and comes.

I think router has bricked because
I was using 12 V 1.2 AMP adapter. I changed it to 20V 3.75AMP adapter. Problem is still on.