@Joseph-TP Of course, I'd be happy to.

@Joseph-TP Thank you for your reply. I was also in contact with the Japanese TP-Link email support, and they suggested the device might be faulty. Unfortunately, the warranty period had expired just...

@Joseph-TP Thank you for your advice. Unfortunately, with either variation, the internet completely stopped working.

@Joseph-TP Thank you for your reply. ISP plala（NTT） I need to choose one of the following options when disabling the ND proxy. Which one should I select? DHCPv6 SLAAC+stateless DHCP SLAAC+RDNSS

■ Status TP-Link Archer AX55 v1 1.3.5 Build 20241211 rel.34816 IPv4 over IPv6（MAP-E） IPv6 Internet Connection Type:Dynamic IP（SLAAC/DHCPv6） Get IPv6 Address:Auto Prefix Delegation:Disable DNS...