I am trying to run webdriverio on my windows 10 computer and keep running into the same issue when trying to run my test js file. So I run this -jar /your/download/dir
Selenium Standalone Server is currently on Build 3.9.1.
It looks like you're running an older version of the standalone server. Perhaps the ChromeDriver version you're running might function better with an update to your Selenium Standalone Server?
http://www.seleniumhq.org/download/
Also, just to be sure... You have the latest version of the Windows Chrome Driver version? They're on 2.35 for the latest. https://chromedriver.storage.googleapis.com/index.html?path=2.35/