Desura Download Client Ports Thread

Hello Everyone, I've just recently thought I might install Desura again.... and now I found my self with a problem

My setup

modem --> HW Firewall --> PC

I know for a fact that my Hardware Firewall is the problem. It blocks outgoing requests of the Desura Download Client
Now my question is, does anyone have a list of ports needed. cause I opened around 20 ports and it still doesn't work.
I have not found a list or anything on the Desura page, but maybe I'm just an idiot^^'

Thanks in advance
Dem