Been trying to resolve this issue with my brother, he just has FF14:ARR and has been wanting to try to play the game again, so he payed for a month's sub and is trying to install the game. However, every time the game starts to try and download the patches, it gets the above error. It seems that it is failing at the same point every time and previous downloaded stuff doesn't get counted toward the overall download when you restart the download, as occasionally happens when I'm patching. He is a bit computer illiterate and I live an hour away so trying to help him get it fixed has been a bit tedious. Is there any insight into fixing this issue other than 'keep trying til it works'? Googling this issue only seems to bring up very old threads back from the beta version with no definite fixes

I was a bit curious that, since he has a portable HDD, if I could bring my laptop that has the game installed up there, hook up his HDD, then transfer all the data over to it so he doesn't have to download it. Dunno if this is possible, since I have no personal experience with portable HDDs.