@Erhy Hello, you can use the parental control feature to block certain domains. Below is the instruction to setup parental control. https://www.tp-link.com/en/support/faq/1531/ May it help.

@Adil1990 Hello, please connect your computer to the TL-WA901ND and then try to login to the web UI with www.tplinkap.net. If it does not work, you can login to the web UI of the main router to get...

@suleyman Hello, sorry to respond late due to the Chinese Spring Festival. It is great to know that you figured it out. Be free to contact us if need more help in the future. Good day.

@Keflock Hello, what is the current network diagram? What is the operation mode of the Archer C7? Regular wireless router mode or access point? Where did you see them？ On the web UI of the main...

@Moff Hello, we will do some troubleshooting first to locate this issue. What is the current network diagram? Which port of Archer C6 connects to the modem? When Archer C6 stops working, please...

@Pankaj_Kumar Hello, what is the current issue? Could you please provide more information? Thanks in advance. Good day.