Backup of specific agent fails frequently with network timeout errors
Backups of a single agent will fail frequently. There will be no other errors (such as VSS snapshot problems), but timeout errors will occur in both the agent and core logs.
There may be an unconfigured NIC that is plugged into a switch. Under these circumstances the NIC will be assigned an APIPA (Automatic Provisioning of IP Addresses) address. No conventionally configured NICs will be able to communicate with the APIPA NIC.
1. Open a command window on the affected agent
2. Type IPCONFIG /ALL
3. Examine the output for a NIC with an IP address that starts with 169.254.x.x