[MCL-5396] Unable to update the Minecraft Native Launcher

It's been 3 days that i've been trying to download the new Launcher.
I've tried everything, i uninstelled both minecraft and Java and reinstalled the newst versions.
I cleaned my computer using CCleaner, avast and Malwarebytes.
I've disabled the antivirus and both public and private firewalls
I've tried to launch From the installation folder in programfiles(x86)/Minecraft.
tried with administrator mode and windows problem solver.
Here is the Nativelog.txt in the installl directory:

native Launcher Version: 34
Operating System: Windows 8.1
Application Hash: 175f2b59d63d17f580f664c195ca8bb82666d0eb
Java Version: 
x64: 1
Starting download of: https://launchermeta.mojang.com/mc/launcher.json
Created pFile
Content length is 013EFE80
Got 200 from server
Download successful
Native launcher outdated!
Hash should be a57a2dced97125f6bda613fa9a75e3de24a84298
Starting download of: http://launcher.mojang.com/mc/launcher/win/a57a2dced97125f6bda613fa9a75e3de24a84298/Minecraft.exe
Created pFile
Content length is 0144C398
Got 200 from server
Encountered internet exception 12002: Se agotó el tiempo de espera para la operación

Starting download of: http://launcher.mojang.com/mc/launcher/win/a57a2dced97125f6bda613fa9a75e3de24a84298/Minecraft.exe
Created pFile
Content length is 0144C668
Got 200 from server
Encountered internet exception 12002: Se agotó el tiempo de espera para la operación

Starting download of: http://launcher.mojang.com/mc/launcher/win/a57a2dced97125f6bda613fa9a75e3de24a84298/Minecraft.exe
Created pFile
Content length is 0144C6C8
Got 200 from server
Encountered internet exception 12002: Se agotó el tiempo de espera para la operación

Deleted tmpLauncher.tmp

i've tested my internet connection and i've tried in 3 different computers.
I also used 4G from my cellphone via USB.
Nothing has worked.