A user's internet speed is slow. The user logs in to the router's administrator portal and sees that unauthorized devices are connected to the network. Which of the following actions should the user take to prevent unauthorized use of the network?
Changing the router's password (particularly the Wi-Fi password) prevents unauthorized users from reconnecting to the network. It’s the most immediate and effective response.
“One of the most effective ways to secure a wireless network is by changing the default and existing passwords to prevent unauthorized access.” — CompTIA ITF+ Security Topics
Calling support may help but doesn’t address the issue directly.
Decreasing signal range may reduce but not eliminate access.
Resetting the router is more disruptive and unnecessary if the password can be changed.
Correct answer: C
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