That sounds an account-related issue, V210 isn't usually connectivity related although there's always a first time for everything.
Quite why anyone would suggest a migration to 360 to resolve this is beyond me, but all the same, it's done now.
If the EPG updates are completing every 6 hours (from the network connections screen) then there's probably not much more self-service can do to progress this, and you'll need VM intervention.
It's entirely possible that the 5day (IIRC) timer from the 360 remotes arriving, to your migration being forced, is also causing further complications. I'd suggest either calling VM or waiting for them to respond on here - but that may take another day or so.
Edited to add that if you aren't able to get this resolved by phone, post back here and we can flag your case to VM staff if necessary.
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