Hi Rinoa21,
My liveupdate administrator version is 2.3.0.71.
That really needs to be upgraded ASAP. There is a known vulnerability in the version you are using. The current version is LUA 2.3.2.
How to obtain the latest version of Symantec LiveUpdate Administrator (LUA) 2.x
http://www.symantec.com/docs/TECH134809
Have you updated your Symantec Product Catalog on this LUA 2.x server, and what SEP 12.1 RU2 components is the server configured to check for? Here, as an example, is what I have selected for my 32-bit SEP 12.1 clients which retrieve defs directly from the LUA:
These resources may also be of interest:
Knowledgebase Articles for Liveupdate Administrator (LUA)
https://www-secure.symantec.com/connect/articles/knowledgebase-articles-liveupdate-administrator-lua
Please do update this thread with your progress! &: )
Mick