Hey, all! I'm also from Bulgaria here and having the same issue since yesterday, shortly after the patch.

I've submitted a ticket and got an answer today, in which I was advised to change my preferred DNS server to 8.8.8.8 ,as well as my alternate DNS server to 8.8.4.4. Which unfortunately did nothing to solve the issue.

I was advised to come to the technical support forums instead. And boy, I did not expect to find so many of us Bulgarians here having the same problem xD
Not sure what to make of this but I hope this raises awareness towards the situation.