So, I had to make 2 separate networks: one with my Bewan and with my netgear. But then I have to use a hub to connect and I have 4 Adapters 3 machines. And even in this case, connectivity is very relative because there are regular disconnections and the speed is very slow.
Otherwise, when operated alone, there are fast and can turn off their diodes during use. They can also be deactivated to avoid spreading waves (but the button is not practical (too small and must be pressed more than 5 sec.))
Update: I bought 2 new netgear. It does not work better. One hassle to synchronize all 4. And just that is unplugged or off them, and they see but do not transmit more data ... no