Are you using a TiVo or a V6? If you're not sure, check here
If a TiVo... check the front-left of your box, there's a series of green lights. Second from left has a painted heart symbol next to it and indicates your online/internet status. Is that flashing or solid?
If a V6.. follow Home > Help & Settings > Settings > Network, and look in the top-right for your "online" status, what's reported?
And are you able to watch VOD at all? Pick a programme from ITV, C4 or C5 Catchup and try watching it - does it work?
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