Do you experience problems during downloading?
Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
We will probably ask you to do a test using only basic settings.
Do you experience problems during repair or unpacking?
Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
What I am less happy about is that you offer the binaries from your own site.
We do not approve of the redistribution of binaries by others, unless you added
functionality and compiled it yourself (and make that clear to the users).