I have this same problem, but doing the components upgrade still won't remotely install Endpoint. I tried installing it manually on one machine and that worked, but I would rather not do that for every machine. Is there something wrong with the repository or is there anything else I can try?
I'm using ERA6 and I get a "Fatal error during installation (0x643)" when I try to use an install task to install Endpoint AV from the repository. The installation logs give the error code 1603, but after looking through the causes for that code I'm still unsure what could be preventing installation of the software. I can't quite decipher much else in the log, so any help to pinpoint this problem is appreciated.