Causes for timeout errors
The following factors can contribute to the delay when the Readiness Probe, Runtime Service Health Probe, or Administration Service Health Probe initiates resulting in the timeout errors.
Poor capacity (CPU-RAM) or sizing of the components.
Nodes are not up and running.
Poor configurations may result in license validation issues, or ports connectivity issues.
Firewall or proxy issues may result in communication failure between the components.
Virtualized or containerized environments may run slowly due to overprovisioning.
Other programs that run on the machines such as antivirus, and so on.