Installation of DD-WRT worked with the firmware 3.11 The installation od DD-WRT on TL-WR1043ND with factory settings is quite straight forward:

1. Download the firmware “factory-to-ddwrt.bin” by entering “TL-WR1043ND” on this page
2. Connect the router with a network cable into one of the 4 network ports (now WAN) and enter http://192.168.1.1 into the browser
3. The router page will open. Go to System Tools > Firmware Upgrade and flash the router with “factory-to-ddwrt.bin”

4. When the flashing process is ready, download the telnet client putty.exe and use it to connect to 192.168.1.1 port 23. Login using the username: root
password: your password
and enter the following command:

 mtd -r erase nvram 

The router will reboot.

5. Now use the browser to connect to DD-WRT by entering http://192.168.1.1