To configure Access Control on the TP-Link SR20 router, follow these steps:
Open a web browser and enter the IP address of your SR20 router into the address bar. The default IP address is usually "192.168.0.1" or "192.168.1.1".
Enter your router login credentials when prompted. The default username is usually "admin" and the default password is usually "admin" or blank.
Navigate to the "Access Control" section of the router settings. This is usually located under "Advanced" or "Security" settings.
Enable Access Control by toggling the switch to "On".
Under the "Access Control" section, you can set up rules to allow or block certain devices or users from accessing the internet or certain websites.
To create a new rule, click on the "Add New" button.
In the "Rule Name" field, enter a name for the rule (e.g. "Block YouTube").
Under "Target Type," choose whether you want to block internet access or specific websites.
Under "Target," enter the IP address or website URL you want to block.
Under "Schedule," choose when you want the rule to be active. You can set a specific time range or choose days of the week.
Under "Device," choose the device or devices you want to apply the rule to.
Click "Save" to create the rule.
Repeat steps 6-12 to create additional rules as needed.
Note that the specific steps may vary slightly depending on the firmware version of your SR20 router.