How to prevent access to the router web? Block IP addresses with permanent HTTP ports except DNS ports. To do this to prevent anyone from being able to manage the router on the web.

Enable two-factor authentication with the correct MAC address, just like login password or change the MAC address of TP-Link router (for TL-WR841N, Setup: Security > Local Management) will be able to access the web-based router management by the specific MAC address, if you need to do so to prevent the web-based router management. Or may cause a 403 Forbidden error.

If there are: Other TP-Link routers that are used to do, can change the MAC address to the same correct password can manage the router on the web normally. But... Mobile phones that are connected to Wi-Fi or have the MAC address displayed can not be changed.

Sometimes, the router has WAN port plugged into 2-3 existing routers. So, we want to set the MAC address for WAN. And, we set the existing external router (for TL-WR841N, Setup: Security > Local Management). Then, set only the MAC address can manage the router on the web with the specific MAC address to block the router from managing on the web. However, other people, peeping who are considered as intruders, may not be able to manage the router on the web and the router admin password. Because we have disabled the router admin password, the router may not be able to access the web from the router to protect your device security.

If the settings changes are saved, the router may not be able to be managed on the web. Other routers have not blocked the gateway IP address in the WAN. For TL-WR841N, Setup: Access Control > Target > Add New > IP Mode and enter the IP address of the router to block. For this IP port address, enter: 80, the port is HTTP and save the changes. That's it, the router may not be able to be managed on the web anymore. To do so, find out the idea of blocking the router web management to protect the changes if the router admin password is known and compromised.

Troubleshooting: My router can't be managed on the web. What to do? Try, reset the router to factory settings.

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