Two days ago my skin sticked to the default Alex skin and won't change. I logged in my.minecraft.net and there's a skin loaded there. I've tried to load it again many times but it won't load anyway.

I can reach (ping) all those addresses:

minecraft.net

account.mojang.com

authserver.mojang.com

sessionserver.mojang.com

skins.minecraft.net

textures.minecraft.net

skins.minecraft.net

Please help me to fix it.

PS: I play minecraft since 2010.