A user from the accounting department reports that every morning, for approximately 30 minutes, their access to the network resources becomes very slow. However, after the initial period, the network speed returns to normal. As the network administrator, you decide to investigate the issue. What should be your initial step in troubleshooting based on the network troubleshooting methodology?
Schedule a time to observe the user's network access when the problem is reported to occur.
Upgrade the user's computer network card to a higher speed model.
Consult with the internet service provider before doing any internal checks.
Immediately replace the user's network cable without further investigation.