we are using the zcm patch management the first time.
We are using zcm 11.4.1 with the zcm appliance.

If i try to download a patch i get the error: zcm Failed to download one or more packages
We are using a proxy for our clients but the zcm server is excluded. I tried both - with and without the proxy setting in "Configuration" -> "Patch Management" -> "Subscription Service Settings"
But i get every time the same error.

Is there any other setting which should be configured?