I installed protractor following this tutorial and when i use webdriver-manager update it says:
selenium standalone is up to date.
chromedriver is up to date.
>
The standalone selenium file was corrupt so i had to overwrite it, copying it into the folder directly.
C:/Users/****/AppData/Roaming/npm/node_modules/protractor/selenium/
Also i had to rename the chromedriver so it is actually called "chromedriver" and not "chromedriver.exe".
C:/Users/****/AppData/Roaming/npm/node_modules/protractor/selenium/chromedriver
This partially happened because i did not set the proxy in webdriver. You can see the Solution for this in the accepted answer.