Perhaps site explorer doesn't log in properly when retrieving those files? That would explain the "unauthorized" html code. I assume that it logs in for each file, but I'm not positive. I just did a simple test, trying to download a small file from my server without providing login info. I got the same "401 Unauthorized" that you posted above. Trying again, with login info, works fine.
Guess, whose words are those:
It seems that in your case you should register and log in to download very big files from that site.
This explanation has been ignored. Why?
So this sounds like a bug. Best read that post about filing a bug, and report this.
It's not a bug, it's a missing feature. You cannot provide username and password in FDM in any way or any place you wish. It is Site Manager in FDM that should be used to manage user credentials.
You can provide username and password also in a standard "Add download" dialog window, f.e. using right click on a single file
in Site Explorer, but not on a folder or multiple file selection.
And only using Site Manager you can save credentials persistently for all the future downloads, so you should surely report a bug if credentials saved persistently in Site Manager are ignored.
All the information needed was in his first post.
Wrong. Here's what's missing to give proper answer without guessing:
* There is no link or site name there.
* There is no info about any site limitations, especially:
- what http/ftp server is used by the site (some older servers, especially MS-Windows based, don't support files > 2 GiB);
- whether downloads are available only for logged-in users or for anonymous users also;
- whether the site limits connection number for anonymous or non-premium users.
* There is no info that the user has been logged in to the site before running Site Explorer.
* There is no info that the user provided his credentials in FDM.
* There is no info that he has assumed that FDM can catch credentials provided in the browser.
* There is no info about any proxy, antivirus software or internet security suite that may cause timeout and break connection in the middle of the large download.
* There is no info that he has searched the forum for similar topics or read any other topic at all, and with what results.