Tenda AC1200 User Manual page 56

Step 3 Turn WiFi Off At: Set the period as needed, which is 23:00~07:00 in this example.
Step 4 Turn WiFi Off On: Select the schedule type as needed, which is Every Day in this example.
Step 5 Click OK at the bottom of the page.
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Verification
The WiFi networks are disabled from 23:00 to 07:00 every day.
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