According to the VM website if I have a spare device slot for Sky Sports all I need to do is try and watch a channel and it will register the device. I opened VM in Firefox, when I selected Sky Sports 1 I was able to open a new tab for the Sky streaming player. But the screen stayed blank and my PC didn't show up as a device to fill the spare slot.
Thanks, I have verified Silverlight is the latest version, installed in Firefox and always activated. Cookies are accepted. I even left it running for 30 minutes but no sign it would register by PC as a device.
I spent 45 minutes with a VM tech support engineer troubleshooting the problem earlier this evening. He could get his computer accepted as a device on my account very easily so there's no problem with the system or my account. We tried different browsers, clearing cache and cookies, reinstalling silverlight, rebooting the PC and wireless hub. Nothing worked. So it seems it's a problem with my PC software, but at the moment I can't think of what else to try.
Although they couldn't solve my issue, tech support might be able to help you. If you can resolve it please post the solution here.