After hearing complaints from users about intermittent network connectivity, you gather information and establish a theory that the issue may be due to a failing switch. You replace the suspected switch with a known-good device but find that the issue persists. What should be your next step following the network troubleshooting methodology?
Immediately begin documenting findings since the initial theory was incorrect.
Replace the switch with another switch as the replacement might also be defective.
Re-establish a new theory or escalate the issue to a higher-level support tier due to persistent connectivity problems.
Revisit the previous step and establish the same theory of a failing switch since the issue remains unresolved.