Righto, I've moved this post to the V6 board.
So your V6 has 2 connections. Coax cable provides your TV signal, and a connection via your homehub provides internet connectivity for OnDemand, EPG Updates and suchlike. That can be wired or wireless, and in your case it sounds wireless.
By means of confirming whether that connection is working, can you use OnDemand ok? If you're not sure, please try it - find a programme in your EPG or V6-menus that lets you "watch now", and see what happens. If it works, then your 'net connection is fundamentally working.
Other than that, there's a few alarm bells in your posts thus far.
1: You're seeing an error "network cable unplugged" error. I'm not 100% on this, but I recall a TiVo uses the phrasing "network cable unplugged to indicate a failed onboard modem, whereas a V6 uses the phrase "Ethernet cable not connected" to indicate the presence of an Ethernet cable in the back socket, but it not being connected at the other end. If the Ethernet socket is in use, the WiFi is disabled. You shouldn't be getting any WiFi indications if there's an Ethernet connection present.
2: Numerous references in your posts to WiFi signal being poor & flaky. The EPG updates themselves are of relatively negligible size, but all the same - a flaky WiFi connection means an unstable 'net connection. Refer to the VoD test please.
Let's check/try these suggestions, and depending how you get on, we can go from there.
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