1. What is the issue? Please be detailed.
The issue comes when trying to download forms from the odk server, it will just say 1 of 1 download fail.
2. What steps can we take to reproduce this issue?
Hosting the server on a dev environment
3. What have you tried to fix the issue?
I have tried disabling the firewall, add ssl and re-checking the URL
4. Upload any forms or screenshots you can share publicly below.
Welcome to the ODK forum, @dawdaborje! We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a picture as your avatar because it helps build community!
What version of ODK Central are you using? To see your version, click on the question mark icon in the upper right section of your Central menu bar, then click Version. If you don't see the question mark, you can see the version by adding version.txt to the root URL (e.g., demo.getodk.cloud/version.txt).
What do you mean be a dev environment? Did you follow all instructions at https://docs.getodk.org/central-install/ to finish the Central installation, including getting a web address (domain name) and pointing it at your server? Did you do anything to customize the installation?