If you are presented with the CA-4003 when trying to play content on 5, there are a few things that you can check which may help resolve the issue.
There are several possible causes for this error message, please attempt the steps below to resolve the issue.
1) Please ensure the time on your computer is accurate and in sync with https://time.is/
2) Please close your browser window fully and try again
3) Please visit the following link: https://player.akamaized.net/html5player/core/html5-c5-player.js?no-cache
You should see a random string of characters across the page. Please close this window and return to 5.tv and try again.
4) If you have multiple devices seeing the same error, please attempt to reboot your router and try again.