SQL Server access to UNC path

Hey all,

We've to decided to move all of our SQL databases to an SQL Cluster with a file server. This because we've had a few issues with sql server failures causing the databases to become unavailable.

However, I am unable to attach or restore the databases on the new SQL cluster, either through the GUI or with queries. It keeps giving me access denied errors.

What we have already tried:

1. Running the SQL instance with a domain service account
2. Giving the service account implicit full NTFS access

3. Giving the service account explicit full NTFS access

4. Giving the service account implicit full share access

5. Giving the sql cluster computer accounts implicit full NTFS access

6. Giving the sql cluster computer accounts explicit full NTFS access

7. Giving the sql cluster computer accounts implicit full share access

8. Doing all of the above...