2TB MyBook Live not seen on network

WD Legacy Products My Book Live
4

If under warranty, I would open a case with WD first.

If not under warranty, there are some guides to debrick it. In this link, both guides, one to recover data and one to just debrick are mentioned. All this assuming there are ONLY software issues.

http://community.wd.com/t5/My-Book-Live/GUIDE-Debrick-MyBookLive-v2-0/td-p/567582