I can't connect in Minecraft.net and Minecraft laucher in my pc, but in anyother i can login normally

(on)When i try to connect in minecraft.net or Minecraft Laucher in none account i can do that, I already created many account, but only in my computer don't work.

On CMD, the results show 100% loss (only in my computer).

ping authserver.mojang.com -n 1

(i)When Inspect Element of google chromer show me some errors (when i tryed connect at minecraf.net).

(/)When I connect in www.mojang.com works normally.