I was wise in advance and logged in to uPlay hours before the stream started. Turns out it doesn't help at all, because when you try to open the stream in uPlay, it gets stuck trying to load the stream and opens the stream in browser instead. Of course I didn't think of logging in in the browser beforehand, so the stream in the browser is useless for getting the free game... Not exactly a good performance from Ubisoft, although I'm not very surprised.
Funnily enough, I logged in to UPlay this morning, but closed it later. Not much of a loss because of how little I played of Watchdogs, but it shows that Ubisoft underestimated the demand to "watch the stream".
It makes me wonder how they believe they can have a successful battle royale with those servers.
Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.