UBB.threads PHP Forum Software Community Forums UBB.threads Version 7/8 Support Attachment uploads seem limited to 100M

Our v8.0.0 forum seems stuck in terms of allowing uploads larger than 100M using attachment manager. Using the choose file button just hangs with no progress indicator, dragging a file in displays a status bar stuck at 1%.

Uploading a <100M file works like a charm.

Max attachement upload size for the forum/user is set to 500M

Here are some PHP particulars:

Looks like I jumped the gun a bit here - disabled Cloudflare proxying and it appeared to solve the problem.

EDIT: Apparently it's an intentional limitation of the Cloudflare free plan - https://community.cloudflare.com/t/...ads-over-100-mb-without-any-error/769260

Ugg, although uploading a 130M file worked, >200M files developed a new error (see attached screenshot):

Ok, the answer to the 500 error was to edit /etc/apache2/conf.d/modsec/modsec2.user.conf and add the following limits which increase max upload to 2G, then restart Apache.

Unfortunately you're in uncharted territory with advanced configurations needed for both your CDN (Cloudflare) and your web server (Apache).

UBB.threads is out of the box designed for default web server configurations, and it works for most users; however UBB.threads is a basic web application and we just assume your server is configured to run basic web applications. We cannot provide support for 3rd party services such as CloudFlare, or offer much advice for tuning your Web Server on these user to user forums, and you would likely require hands on toying with configurations for compatibility with such unique requirements such as you're needing for your forum.

Out of curiosity, why do you want users submitting such large files?

It's for admins - not the average end user. We have certain resources behind a small subscription paywall, so these files need to be attachments on posts in the subscriber forums.