We have upgraded a customer to Server 2012 R2. We are trying to perform a backup but every single thing we have tried has failed with the following :
Backup of volume \\?\Volume{739fbb28-4d00-11e3-80b3-806e6f6e6963}\ has failed. Incorrect function.
We are backing up the F: drive to a NAS drive attached to the network. The setup of the network is as follows: 1 Server2012R2; 4 workstations, NAS and Watchguard firewall. Any ideas would be greatly appreciated!