Find a solution using the build of the restore image dealed in this post Restore image does not support the Intel I217-LM and the I210 GB Cards.
Direct link is : https://www.urbackup.org/downloads/Restore/urbackup_restore-2.0.3-2-amd64.iso
Amazing that Intel NIC card drivers are not included in the last version of Urbackup Restore ISO (2.1.1).