KB1174: RPC function call failed. The RPC server is ...
www.veeam.com › kb1174Aug 23, 2011 · Veeam Backup & Replication however is not able to add firewall exclusions to hardware or third-party software firewalls. The most common ports that cause this issue when using Application-Aware Image Processing are the Dynamic RPC ports that the temporary guest agents are assigned. These ports are: 1025 to 5000 (for Microsoft Windows 2003)