Launcher not working and can't connect to lodestone and forums

[Sicno]

Today suddenly the game launcher stopped working. It doesn't load anything at all, remaining on a black screen and after a while I get:

"A system error has ocurred: -214669211. http://frontier.ffxiv.com/version_4_0_win/index.html?rc_lang=en?time=2017-12-15-03"

And when I try to access the lodestone and the official forums they won't load. I use a cable connection to my router on desktop, but I also tried accessing the aforementioned sites on my phone over wifi with the same results. I'm posting this from my phone using mobile data from another company than the isp I use at my home PC. While that sounds like it may be an issue with my isp I find that very unlikely because these are the only sites and service (the game) that I'm having trouble with. I'm in Chile and my home isp is Movistar.

This only started happening today, after many years of playing without issues.

Edit: weird thing is that I can access other Square-Enix related pages like http://forums.na.square-enix.com/ but not http://forum.square-enix.com/ffxiv/ . Also, didn't explicitly mention it but I'm currently unable to play the game because the launcher doesn't work. THAT'S the big issue.