A user complains that the internet connection on their workstation has been significantly slower than usual. You have verified that no new software was installed and no changes were made to the network configuration recently. You need to identify the most likely cause of the slow network speeds. What is the BEST step to continue troubleshooting this problem?
Advise the user to close all running applications to identify if a particular software is consuming excessive bandwidth.
Run a virus scan to check for malware which might be using network resources.
Perform immediate system updates to the workstation's OS and network drivers.
Check the workstation's physical network connections, including ensuring network cables are securely plugged in and inspecting them for damage.