KB1174: RPC function call failed. The RPC server is ...
https://www.veeam.com/kb117423.08.2011 · Code: 1722 Cause The ports that Veeam Backup & Replication is attempting to use are blocked by a firewall. The VeeamVSSSupport service is stuck on the Guest OS Antivirus or Antimalware software may attempt to interact with the VeeamVSSSupport service executable. In rarer cases dynamic port allocation needs to be configured.
KB2065: RPC function call failed. Function name ...
https://www.veeam.com/kb206529.09.2015 · The issue is related to an RPC change introduced with a Microsoft security update KB 3067505 . Solution You can obtain a hotfix for Veeam Backup & Replication version 8.0 by contacting Veeam Support. Please refer to issue 54622. For version 7.0 the only workaround is to uninstall update KB3067505 from Veeam B&R server. More information