Scroll a little and you will find my posts eexplaining how I fixed everything, is the message number 3)

Since some days ago, more than a week, I can't access the Spotify Web Player on any browser (Chrome, Firefox, Internet Explorer and Microsoft Edge). Trying to access from my phone works (on Desktop View in browser), using a VPN of my own country works, on Linux it works, the desktop program also works. I don't know what I have to do anymore, if it is an Spotify problem, a problem from my network, I don't know. If someone can help me, I will be glad. 
I have my suspects it can be a DNS problem, but changing the DNS on my computer changes nothing.

(Also it can't also show the embeds playlist or songs on Discord, now it makes the app crash, though I am not so worried about this last thing)