Hello Kuba, sorry about the delay and thank you for your answer.
It all worked fine when I updated the Nvidia driver.
But now the dock kills my internet connection when I plug more than two screens. It doesn't happen always.
I'm trying to find the right updates for my wireless card to test, but my notebook is one of those who comes with almost all components with some alteration by the manufacturer.
I'll come back with the results asap