Cable connection

Dear all,

I recently got my Zyxel router and I tried to make the connection to the internet. I need to set up the cable connection as no socket is available. I followed the instructions, however, I was not able to make a connection to the internet (no lighted globe).

I tried the red and blue cable as mentioned in the instruction. There it also says, that one can try the orange and white one. My DSL cable, however, has no orange cable. So the question is which cable I should connect. Attached you can see the possible cables.

Thanks in advance!