My Products - Downloads - Source File Could Not Be Read

In view of Cakewalk being discontinued, I followed someone's advice and attempted to download the files I normally would download or have already downloaded automatically using Command Center.  My understanding is that Gibson said that its servers would still be working, and our files would still be available to us.  [In spite of such promise, I suspect such availability may be limited in time.]  I went to my profile online on Cakewalk's web site, and went to the "My Products" web page where I can choose a product and click on the link to download it.  However, I keep getting the error message:  "[name of file I'm attempting to download] could not be saved, because the source file could not be read.  Try again later, or contact the server administrator."  Does anyone know why such error message is appearing?  Is there any work-around . . . any other way to download the files (but not through Command Center)?  I also tried the download mirrors, but got the same error message.  I first tried around midnight, and thought maybe the servers are down due to maintenance (which companies often do around midnight).  I tried again when i woke up at 7:00 a.m., but got the same message.  Thanks in advance for any input.
 
-brianzebra

Just tried right now Studio mixing FXset( its only 7MB ) and it's working for me. I used the download mirror 1. What browser are you using, I use Chrome. 

The download mirrors were giving me the same problem, unfortunately. 
 
In view of the question about which browser I was using, I decided to try another browser.  I had been using Mozilla Firefox Quantum (64-bit) v.57.0.2, which is the most recent; that is what was giving me the "source file could not be read" error message.  I tried both Internet Explorer and Google Chrome; I had more luck with them . . . I wasn't getting the "source file could not be read" any more.  It still wasn't smooth sailing; for the few files (4 different ones) I attempted to download so far, some files downloaded completely, but others paused, had to be resumed, and ended up not downloading or downloading incompletely.  Internet Explorer (v.11.x - latest version) downloaded 2 of the 4 files.  Chrome (v.63.0.3239.84 - latest version) didn't complete the first downloads I tried with it, due to "network error" (according to the Chrome Downloads page which shows the status of the downloads).  I just tried to download one file again with Chrome, to see how it goes; it took a long time, maybe about 30-45 minutes, but it ended up downloading successfully.
 
So, bottom line is that trying a different browser may solve the problem I originally identified.  And with the different browsers other than Firefox, my gut feeling is that it's best not to try to download too many files at one time (even if it's only 2 or 3 at a time), because that possibly is what may have caused Explorer and Chrome to not be successful downloading certain files.  In the future, I'm just going to download one file at a time, before going on to the next file to download.
 
Thanks for everyone's input - all the input helped to narrow down the factors and explore other possibilities, to troubleshoot the issue.
 
P.S.:  By the way, does anyone know why I am getting the "source file could not be read" error message with Firefox?  That is, is there any setting (perhaps a security setting?) within Firefox that I could change, so that I could download files successfully without getting that error message?  I'm wondering why one browser works and another browser doesn't work; that means the problem is not with the source, but with my browser.  Since I'm using the latest version of Firefox, I would think that I shouldn't be having this problem.  [Also, here's another tidbit of information, in case this helps anyone analyze the situation.  In other scenarios not involving Cakewalk files, I noticed recently that while using Firefox and wanting to download a file, I encountered a similar problem, getting the same error message.  I have my cursor set to left-click once instead of twice on a link to open it.  I didn't want to open the file; I just wanted to download it and save it.  So, I right-clicked on the link for the file and chose the "save target as" option.  The file then started downloading to the file location I had chosen, but then pretty quickly stopped and gave me the "source file could not be read" error message.  I then decided to left-click on the file to just open it, and to save it after it opened up, but then unexpectedly the "save as" dialog box came up, and I was able to save it to the location I chose without getting the error message.  That has happened several times.  I don't recall what all the types of files were that I had tried to download when I experienced that situation, but could it be that Firefox distinguishes between .exe file and other files (such as .pdf files), and gives me a harder time with .exe files due to security concerns?  If I can figure out the cause and the solution to that general problem, then that will allow me to use Firefox, my preferred browser, to download the Cakewalk files.  Thanks.