Network Share Invalid Password/ID Scenario

My media drives are ESATA or internal SATA drives. I do not like using externals except for image backups.  

I have a few RAID boxes (using E-SATA) as well as internally mounted SATA drives on two desktops.

 My network is a 1gbs wired network except that one of my 3 WDTV’s does use wireless instead of wired connections.