Hello everyone, and sorry for the delay in reply ...
@ Troll05: thanks, this is something that I had not thought: I had taken for granted that it did automatically updating the firmware!
@ musicman2523: I'm already using 2.0.6, it was the next step to be able to connect ....
But I want to try Troll05's hint first, 'cos my IQ with 2.0.6 seems slower than before...
Anyway, thank you all again for your valuable help, I'll know to you how it ends.