@Eugene9999 Hi, The Archer C4000 cannot assign IP addresses to its WAN port on its own. The WAN IP address is either set by the user himself via "Static IP" or automatically by the DHCP server of the...

@ccadar Given that TP-Link has probably sold thousands (if not already tens of thousands) of Archer C80 worldwide and your particullar problem is not a hot topic in this forum, we should assume that...

@ccadar Hi, Is this with "Smart Connect" enabled or disabled? Are you using different Network Names (SSID) for 2.4 GHz and 5 GHz or identical names?

@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?...

@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...

@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...