Stacking issue

My topology looks like this

0 - master brick

0A - SSR

0B - SSR

0C - SSR

1 - DC brick

1A - 4Relay

1B - 4Relay

After connecting master brick to my mac (tested with beagle bone black with same results) few magic things can happend:

1. LEDs on both bricks turning off after few seconds

2. Bricks are restarting every few seconds

3. Only Master Brick and it's bricklets are visible

I found FAQ section, but non of those worked for me.

Any hints ?

Is it possible that the firmware version of your Master Brick and DC Brick are not compatible?

Unfortunately we had to break compatibility for the RED Brick. Both Bricks should at least have firmware version 2.3.0 (or both should be below 2.3.0).

Do they work individually (if you don't build a stack)?

grhhhh :-/

they worked individually fine ..workED ..I just "bricked" my DC brick :-( ..LED is dead ..i beleve that one of stack connector disconected by accident while under voltage :-/

I have to order new one..

Thx for that clue!

EDIT:

brick was in "bootloader mode" ..so after upgrading firmware stack working stable !

..nice !