Can I update HDVR 2 via the internet

No.

What do you mean as far as "Update" ?

You can hack the unit to be able to use the Ethernet instead of the Phone line if that is what you are talking about.

Look around the Underground Forums. Thats a good place to start.

You will need to get the "Zipper" program.

You should also know that the phone line isn't really needed once it has been activated.

Wolflord11 - That is EXACTLY what I would like to do. Substitute the ethernet for the phone line.

Nothing more.

well with ptvnet. you can make daily calls via ethernet

Heres a Good place to Start:

Tivo Underground Forum

More Importantly:

Hacking your Series 2 DTivo

Hope this helps somewhat