@GregaS Your ISP's auto assigned DNS server may not be stable, you can just use Google's.

@Imee1976 Hi, if you don't mind, I would also want to know what is the detailed network layout/diagram, that how are the AX20, unmanaged switches, and the Deco E4 are connected to the network, then...

Thanks @Philbert for kind suggestions. @sabastian please check this and see if you can login to the web interface of the router: https://www.tp-link.com/support/faq/2236/

@henfredemars Hi, thanks for reporting the issue to the TP-Link community. Can we have a screenshot about the wireless security settings on the AX1800? You may mask or cover the wireless name and...

@fix_me Hi, sorry for my previous misunderstanding, and thank you very much for the explanation. We use this error or redirect to remind you to check and fix the internet connection issue just in...

@Leozaur Hi, I check Searinox's issue description again, sorry for my previous misunderstanding. I now understand what you are reporting, while we use this error or redirect to remind you to check...