>So, has RDP to the ultrabook been reliable today? Have you confirmed your ISP was updating your router during the problem period - or last night, when it now works OK?
Yes, it has been reliable since I started to work. But, after the updates last night, from 02h00 to 06h00, it went as worst as it was before.
I did not have time to verify with the ISP. I will let you know.