If you use Chrome to play kiekko then you might run into some problems as I did. Essentially, there has been an update by Chrome which affects the way Java works - this requires you to now 'enable' it so it will work again. You do this by following these instructions:
1. In your URL bar, enter:
chrome://flags/#enable-npapi
2. Click the Enable link for the Enable NPAPI configuration option.
3. Click the Relaunch button that now appears at the bottom of the configuration page.
I see there is a Finnish topic for this problem, so I decided to create one in English.
(More info: https://java.com/en/download/faq/chrome.xml)
-kiwi
vanhat_pojat