TP-Link TL-WR841HP User Manual page 169

4. I want to build a WEB Server on the LAN, what should I do?
1) Because the WEB Server port 80 will interfere with the WEB management port 80 on
the router, you must change the WEB management port number to avoid interference.
To change the WEB management port number: Log in to the router, Go to "Advanced
2)
→Security→Remote Management". On the "Remote Management" page, type a
port number except 80, such as 88, into the "Web Management Port" field. Click Save
and reboot the router.

Note:
If the above configuration takes effect, you can visit and configure the router by typing
http://192.168.0.1:88
field of the Web browser. If the LAN IP of the modem connected with your router is
TL-WR841HP
(the router's LAN IP address: Web Management Port) in the address
300Mbps High Power Wireless N Router
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