API call timeout value was reached (4042391)

API call timeout value was reached.

API call timeout value was reached. For Guest Quiescing, several things cause this:

• VMTools not installed on the machine, or it is corrupt. You can reinstall on the guest OS (usually needs a reboot).
• The VM in question is simply taking too long due to the load placed on it. Try running the backup at a different time of day.
• The filesystem and fragmentation of the VM in question could also degrade performance to such an extent where this happens. Check the frag levels on the guest OS and run defrags as needed.

1. Make sure other backup software's Agent is not installed on the VM (check to see if the other Agent's service is installed).
2. The VMware Snapshot Provider service is installed and set to Automatic.
3. The Microsoft Volume Shadow Copy service is set to Manual.
4. Check if a manual quiesced snapshot can be made using the vSphere client directly.