For QVIS Zsus/Atlantis/Discovery/LX (I think its actually a Discovery/LX) horrific lack of naming on the box or the unit.
Android and iPhone "MEye" is the only free app I've found that works, with default "Mobile Port" (Advanced>Net Services) 34599 and "Media Port" (Advanced>Network) 34567
On a PC the CMS software as said above is the only working remote software as well, but you do have the web browser as a get out of jail free on that side!
http://www.adata.co.uk/downloads/lxdiscoveryremoteviewing.aspx
Home this helps took me and my house mate 4 hours to crack and our day job is networking with an ISP... mental configuration/bug ridden auth code
PS. make sure you set a password other than 'blank' (NULL) on the user account you login with.