Anything over 10MB not downloading

A little more info...

Download by redirect = false

When Download by Streaming = true, it gets to only 4.5mb and says that it's complete.

download by streaming reads the file from your server, and sends it in 2K chunks to the browser.
If it's ending partway through, it would suggest that your webserver is halting it.
... esp since as you say, a direct FTP download works fine.

Ok, thanks. So when it's disabled, what could the problem be? It is getting all the way to 40+mb and stopping. Smaller files come through fine.

cgrxman:

Ok, thanks. So when it's disabled, what could the problem be? It is getting all the way to 40+mb and stopping. Smaller files come through fine.
Same thing. A limit set by your webserver software ... IIS or apache

There are several ways a file can be downloaded:

1. direct URL ... which essentially ends up being like an FTP transfer
2. redirect URL ... same as above, but via a SymLink ... only supported on Linux/Unix
3. streaming full file ... where webserver reads file from filesystem into RAM and sends the whole thing to the browser via the webserver engine ... requires lotsa RAM
4. streaming in chunks ... where webserver reads file from filesystem in 2K chunks and sends those to the browser via the webserver engine (this approach simply prevents the webserver from having to cache several hundred MB of the file in RAM before sending to browser)

In Zen Cart, these translate roughly to:

1. you paste a URL
2. Redirect on, streaming off
3. Redirect off, streaming off
4. Redirect off, streaming on

Thank you for your time. Let me see if I got this right...

There is some sort of transfer limit that is set on my server that would cause file downloads to behave differently if I type {server}/cart/downloads/{file_name} in my browser and select "Save to disk" vs. clicking the download button on my invoice page and selecting "Save to disk".

What limit do I ask my host tech support to check/increase? Please pardon my lack of knowledge in this whole file transfer thing.

that should be {server}/cart/download/{file_name} ,sorry.

Ok, it's much clearer now. Is there a way in ZenCart to force direct URL via the download button on the invoice page? Do I paste the full URL in the attributes settings? Otherwise I have to figure out where the limit is in example 4 above.

Zen Cart does not supply direct URL's, for security reasons. Do you really want your customers to be able to share download URL's with their buddies?

I had a simimlar prblem crop up this morning. nothing over 6 MB would download for me.

So, I called my host....

The download funtionality goes through the PHP processor to send the file since it does not give you a direct link to the file. He figured that out when I read the link URL to him.

My host increased the PHP maximum execution time and I now hoave no problems downloading my 48 MB file (the largest one in my store currently).

This is something that should perhaps be put into the knowledge base!!!!!

Please!!