@lupar Hi, you may provide as much info as you can, what is the exact issue, what have you done, then we will see if we can help, thanks.

@UserRoute How about follow this guide to configure the Access Control settings on your C50 V4? https://www.tp-link.com/support/faq/1724/

@WhiteTiger If your router WAN IP address is different from that of your public IP address, that means you have an intermediate device (ISP modem/router) before your router. As far as I know that...

@Voyager99 Sorry to hear that. If you want to replace it first, yes, you can do that, please contact the local tech support to confirm the warranty, they will help you with that:...

@OsSeMeR Hi, Sorry to tell you that we only provide English Service for Global users. If you are requiring the Bandwidth feature on the AX50, as we replied earlier that this had been forwarded to the...

@Tigerldi We have reported the issue to the support engineers, they will likely reach out to you via email to continue to troubleshoot your issue.