I purchased a Mybook World Edition II 1TB NAS in Jan/2011. It is connected to my home LAN via the Ethernet port (have alternately connected NAS to LAN via CISCO WRT610N V2 router and D-LINK DSS-8+ 10/100 switch). I lose connectivity to the NAS on the average of several times a week (WD Discovery Tool does not see the NAS). Must re-boot NAS to re-establish connection. Contacted WD and applied firmware upgrade to latest revision 01.02.06 with MioNet 22.214.171.124 as recommended. Issue persisted. Had NAS replaced on warranty as recommended and re-applied firmware upgrade to replacement unit. Problem persists. NAS log provides no clues regarding root cause of connectivity problem.
WD has no solution to offer. This is a major issue that severely affects the effectiveness of NAS (I used it for the continuous automated backup functionality - no MIONET use).
Any suggestions to remedy this issue would be greatly appreciated.