A network technician is investigating a sudden decrease in network performance at a client's office. Upon initial examination, the technician notices that the issues started right after the security team performed an upgrade on the firewall. Users report slow internet speeds and intermittent disconnections. Based on this scenario, what should the technician consider as the probable cause of the network performance issues?
Malfunctioning server within the client's local data center
Misconfiguration or an issue resulting from the recent firewall upgrade
ISP outage affecting external network access
A physical break in the main fiber optic cable serving the office
Given that the network issues began immediately following a firewall upgrade, it is logical to theorize that the upgrade may have introduced configuration errors or compatibility issues that are affecting network traffic. Incorrect firewall rules or settings could be improperly filtering or blocking traffic, leading to slow internet speeds and disconnections. It's essential to examine firewall configurations whenever changes correlate with new network issues.
Reviewing other factors like ISP issues, cable faults, or server failures should be a secondary step after investigating recent changes that align with the onset of the problem.
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