Upload to Volume inside unity catalog not possible?

boriste
New Contributor II
 

I want to upload a simple csv file to a volume which was created in our unity catalog. We are using secure cluster connectivity and our storage account (metastore) is not publicly accessable. We injected the storage in our vnet. 

I am getting the following error while uploading:

"An error occurred while uploading. Please try again"
Should i open the IP Address of the control plane in our storage account? Is there a way to fix this?