@IKki420 Hi, you may take factory reset the router and configure DNS servers again following this guide. It is also suggested to contact Cloudflare support to comfirm.

@Littlejanner Hi, thanks for posting question here. You may refer to this troubleshooting guide to check.

@Firewolf77 Hi, thanks for posting question here. You may refer to this guide to try again.

@RVDreamMakers Hi, thanks for posting question here. You may update firmware(User Guide P74) from the official website, then check whether it helps.

@Takaxi Hi, thanks for posting question here. You may refer to this guide to set up parental control.

@pcakhilnadh Hi, thanks for posting question here. Just as discussed in another thread you mentioned, WDS function on some TP-Link routers may help to extend the wifi range of your main wifi6 router,...