Sorry to hear you're experiencing difficulties. There are a couple of things we need to check:
Check if you can watch eir Sport via browser here
If there is a blank area displayed where the player should be, it is likely that Microsoft Silverlight has not been installed. You should be offered the option to install Microsoft Silverlight. Alternatively you can download Microsoft Silverlight here.
Check if your browser is supported:
Google Chrome, Firefox (v52 and above) and Microsoft Edge do not support Microsoft Silverlight which is required for the eir Vision Go service. You can use the following browsers:
Internet Explorer 11 Ė Download
Safari (for Mac) - Download