Only 1 firewire port working on every dock's I have

Hello,

I spent 1 entire day trying to find a solution for this problem and..nothing.

I read foruns, discussions everything. Tried a lot of solutions.

I have 2 docks:

- 1 go flex desk firewire 800

- 1 Icy Box dock fireiwire 800

Both have 2 firewire ports.

In both of them, only 1 firewire port works. Both docks have 1 firewire port not working.

This means that if I want to copy files from one hard drive to the other by firewire... its not possible!!

Anyone here have this problem and found a solution??

I am really getting crazy with this. I don't believe both of the docks are faulty...maybe they are but after everything I readed here I believe it's probably a macbook problem.

I have mackbook pro i7 15" 2011.

Oh, I should say that this worked before... some weeks ago this was working and I have no idea why only one firewire port works now...

Any other solution I should try? Already tried all that pram a smc resets...