Even if memory is sufficient, the script might be timing out while zipping large files.
To prevent connection timeouts or server crashes, many platforms (like ) cap these requests at around 20GB or 10,000 files. Stack Overflow How to Bypass the Limit
On the second try the app accepted “Now.” The zip streamed down to her machine in minutes. A quiet success—proof that something could be arranged without swallowing everything whole. She still wanted the rest, so she queued “Maybe Later” as a separate request and let the upload run overnight. It throttled but completed by dawn.
If the file manager runs via PHP (common in cPanel), the script may be hitting the memory_limit .
: Instead of selecting "Download All," select smaller groups of files or individual folders that fall under the 2GB threshold.
: If the platform allows it, select only a subset of folders or files that total less than the "on-the-fly" limit (which varies by service but is often around 20 GB to 100 GB). Desktop Syncing : For services like , installing the desktop application and syncing the folder locally avoids the web-based ZIP generation limit entirely. Use Specialized Software