No errors shown anywhere, the connection symbol on the bottom right of the laptop does not indicate anything at all on this laptop, while on the other one it disconnects without any error. You just have to login again.
I could not see any difference with the lights, but it's very quick and I may have not spotted that.
Yes, it was working fine. I had connection and I was using it, but as usual I had the 5/6 seconds disconnection. The lights worked, I also tested all of them with a customer service agent via phone and they work correctly.
i think the word "disconnection" is what is confusing matters here. it doesn't sound like a disconnection to me, if it was then you'd see the light on the front of the hub change change to signify a disconnection.