Problem

SMError text contains "Path/File access error" message. Cannot connect to target system with VNC.

Possible Causes

  1. System resources have been exhausted.

Solution

  1. To gain access to the system, will need to hard reboot it.
  2. Once rebooted, check the Administrative Events custom view in Event Viewer.
  3. Keep an eye out for Event ID 2004 (Resource Exhaustion Diagnosis Events). If exists, note the processes and bytes consumed.
     
  4. Will likely need to escalate to determine what the process is tied to and why it used up the available resources.