@Silvie 

Hi,

Are you configuring the router via the admin webpage?

If yes, then click on the pictogram with the label "Advanced" and then select "Network" from the menu on the left and then click on "Status".

What is the status shown for the "Internet"? (like "Connected" or "Connecting" or "Disconnected" or whatever)

  @woozle 

The status is "Disconnected". Please, see few photos below and attached.

Does it mean the problem is on the internet provider side - no internet goes into the Rooter?

  @Silvie 

Hi,

Is this a brand new O2 broadband Internet connection you are trying to set up for the first time or is this an existing Internet connection that has worked fine previously, before you've got the Archer C80?

  @woozle 

Hi,

its brand new. Its a new building, with newly installed fiber cabels.

  @Silvie 

Ok. This makes it rather difficult to sort out the problem.

Have you got some sort of documentation from O2 that details the setup process for the broadband connection they have sold to you? Like a welcome letter or whatever?

What about the "box" where the other end of the cable going to the C80's blue "WAN" port connects to? Does it have some LEDs that indicate its operating status? What's the make and model number of that "box"?

Apart from that, if you have a Windows computer with Ethernet port, then you could double-check that your broadband connection is actually working.

To do that connect the Ethernet cable coming from the O2's "box" directly to the Ethernet port of the computer and then setup a "Dial-up" PPPoE connection in Windows and see if it will connect or not.

  @woozle 

Hello,

thank you for your reply.

I managed to contact someone else from O2 and they told me that the configuration was not complete. That O2 technical support gave me only half of the data to be filled in.

And now it works. I´m very happy.

Thank you anyway for your assistance and effort to help me.

All the best

Silvie