Hi friends,
A new baby girl is at home, but the joy is clouded by an unfortunate fact that it is right to point out here. Meanwhile, it was not easy, the shop owner, that had to replace the SX900 was waiting from Yamaha the new keyboard. to then send it to me (try to imagine the time needed) I had to insist a lot. After a week, the shop was convinced and sent me the new SX900.
First sensation joy just looking at it, I mount the keyboard, it works it is perfect with its scent of new LOL.
Second sensation, slight discomfort, the keys are, to my touch, hard (obviously they are new) eh! eh! I was used to the wear and click clack noise of the "old" keyboard.
Now comes the fun, I take the UD-WL01 LAN adapter, it connects, I turn off, I turn on, connection lost. Verdict is the keyboard was probably not faulty, but the LAN adapter is faulty, as had been said by Teknoss (post n. 6).
I had specified to the pseudo Technician of the Assistance Center to check the adapter and he told me that he had done it and that the problem was the keyboard, motherboard to be replaced.
At this point you will say that you care, now, you have a new keyboard better this way.
No! friends, I'm very happy it's true, but I waited two months without a keyboard, it could have been more, I got angry, I had to urge insistently, I made two trips of 80 km, one to bring the keyboard, the other to go to resume the adapter, I risked having, the SX900 motherboard replaced without there being a real need and, after who knows how many months, I would have found myself with the problem of the faulty adapter (which among other things was the first serious suspected).
It went well for me, but how many will not go like this due to the superficiality of a Service Center technician? Why waste time to understand which tooth is bad, we remove them all and the problem is solved in one go (but not always). The adapter has not been tested, or, I am so unfortunate that even the new sx900 is malfunctioning.

Now I'm very happy with how things went, I have a new sx900, the adapter works for now (even if I have to reconnect it at every start), the temptation to buy another one to get a feedback is great.
Now I'm going to play that I have already wasted too much time, we can hear from you for Christmas greetings...
Stay healthy
Pietro