24 days ago - AndrewT - Direct link
I frankly have no idea, I am sorry. This is not a general problem of course.

Can you try a different machine on that same network? Then on a different network?

Does using a VPN make any difference?  
23 days ago - AndrewT - Direct link
DarkManti said: P.S. more specifically, we are talking about a city in the south of Siberia: Abakan

P.S.S. and my another friend from Kemerovo (700km from me) has no problem with ping
That makes it quite clear it is a local problem I'm afraid.

In your VPN did you set it to appear to be in the USA? That's usually best.