Can't access secure.square-enix.com, launcher screen is black

[YobaHere]

I can't start the game, because of a black screen in a launcher, and also i can't access https://secure.square-enix.com and subdomains for *.finalfantasyxiv.com from my home network, but it is available from my mobile network.
Those resources also unavailable for some other networks, like this one:
https://isup.me/secure.square-enix.com

[Dynratygus]

Thank you for posting in the Final Fantasy XIV Technical Support Forums.

When did this issue start occurring and what platform are you trying to access the website and game on? Were any changes to the network at all?

Hope to see you online!

[YobaHere]

It started yesterday, I've tried to access game from both PS4 and PC. There were no changes to a network, PS4 is connected to a wi-fi, but PC has wired connection to a same router. If this was a problem on an ISP side, then it's strange that there is also errors on http checkers online.
stats for secure.square-enix.com: http://r.h-t.co/en/3/e51777c5-e334-e...2-0003ff73517a
stats for eu.finalfantasyxiv.com: http://r.h-t.co/en/3/16d6da3a-e434-e...2-0003ff73517a (notice how it has errors when trying to access from Russian Federation)

[Einmimiria]

Thank you for the reply YobaHere.

If you are experiencing this issue on all of your devices, but not while using your mobile data, it sounds like there is an issue along your route to the server as well as Square Enix related websites.

In this scenario, i'd recommend contacting your ISP and explain the issues you are experiencing.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!

[YobaHere]

Thank you. I will try to contact them again, hoping that they will resolve this.