I'm with roy here - I use V6 so the 360-specific error codes aren't my speciality, but the symptoms all describe hard drive issues. If you call VM (on the usual 150/0345 4541111 number) and report your faults, then they should be able to arrange the necessaries. Alternatively you can wait on here for a staff response, but it's not real-time and may take a day or so.
As regards your internet issues, this section of the forum is focused on TV-360 issues so I'll encourage you over to the broadband section of the board to go into more detail there. There's a few questions I could ask off-hand, but it will risk this TV post getting confused so I'll suggest you post details of your broadband/WiFi issues there, and more help will be forthcoming.
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