Unraid Community Applications Plugin: Download Failure: Network Failure

When installing the most important plugin for Unraid, the Community Applications plugin, the following error may appear:

Change Unraid DNS Server

To be able to change the DNS servers of the Unraid server, the Docker and VM service must be stopped.

„Settings“ -> „Docker“ -> „Enable Docker“ -> No -> „Apply“

„Settings“ -> „VM Manager“ -> „Enable VMs“ -> No -> „Apply“

Then under “Settings” and “Network” change the two IPv4 DNS servers.

The best choice here is Cloudflare or Google:

DNS1	DNS2
Cloudflare	1.1.1.1	1.0.0.1
Google	8.8.8.8	8.8.4.4