Old Access Point
Introduction
On some old routers, namely TP-Link's TL-WR840N version 2, there may not be a option to switch to access point mode. This is what you have to do to access that mode indirectly.
Steps
- Power off the router
- Unplug RJ cable from the WAN port
- Connect the router to a PC (using one of the LAN ports)
- Power on the router
- Log it to the web console entering your router's IP, you can find out the IP by executing
ip --color a
(on a Linux box) if the router's DHCP server is still active - In LAN settings give your router a static client IP that fits into a network you want to connect it to; example: 192.168.100.100/24 (make sure no other hosts are associated with that IP in the target network)
- Restart the router
- Log in to the web console entering the IP you have set
- Turn off the DHCP server (DHCP -> DHCP Settings -> DHCP Server: Disable & Save)
- Power off the router
- Plug the cable from a network you want the router connected to to one of the LAN ports
- Power on the router
- Log in to the web console entering the IP you have set
- Turn on the wireless network and set it up (SSID, password, etc.)
- Done! :D