danialfarhan,
Login to the router.
LAN, IPTV - Select ISP Profile: Unifi-Home.

Hi STC, i also cannot find this firmware on the website, but there is a latest firmware you can use, version 3.0.0.4.260. You can download it with below link. This firmware will change the UI to our new ASUSWRT UI.

http://support.asus.com/Download.aspx?SLan...56U_3004260.zip

Here is the changelog

1. After upgrading to 3.0.0.4.260 and restarting your router, please press the reset button for more than 5 seconds to reset the system to the default settings.
2. The original download master is not compatible with new firmware. Please uninstall the download master utility in computer and remove the "Complete", "InComplete" folder in the hard drive plugged in RT-N56U usb port.
3. Upgrade to the latest ASUSWRT user interface
4. Enhanced QoS feature
5. Web based download master
6. PPTP VPN server
7. Flexible on-line time control for different client

Thank you

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Added on December 12, 2012, 9:51 am

Hi danialfarhan, you mean cannot find your connection type right? Let us try redo all the step. But first, if can please update the firmware to the latest by using the link below.

http://support.asus.com/Download.aspx?SLan..._B1_3004260.zip

If you unable to download it, please follow the step bel

Please do a factory reset to the unit by pressing the reset button at the back of the router for 5sec. The power LED will blink.

Once restart from the factory reset, login to router again and redo the setting again.

Select PPPoE, at the bottom there you can see there is a check box, tick it and select the ISP type on your right.

Then keyin your username and password for your unifi. Then your network key you preferred and then then finish the setting.

Try see you can online or not.

Thank you