I know it is late, but in case anybody is seeking the answer:

This is a common error and does not indicate a critical issue. It appears even on healthy, fully functional WorkSpaces and can generally be ignored. These messages are often related to temporary network conditions or expected system behavior.

If your WorkSpace is operating normally, no action is needed. However, if you’re experiencing connectivity or performance issues, you may want to check network settings or refer to AWS WorkSpaces troubleshooting documentation for further guidance.