@danmv Thank you for your suggestion. This will be recorded and reviewed.

@amdroyt Have you referred to this article? Please check the QoS settings on the AX50, ensure it is correct, or simply disable it: https://community.tp-link.com/en/home/forum/topic/257504

@BonanGui Are the AX6000 and the RE505X on the same floor, or they are located on different floors? How far between the two? What if you try to move them closer?

@PeppaPigKilla Below are some instructions to set up an IPv6 connection on the wireless router: How to set up an IPv6 Internet connection on the Wi-Fi Routers If the connection still fails, please...

@user-2021 You need to get the correct username and password from Singtel but not trying. If Singtel provides you a PPPoE connection, then you need to type in the correct username and password on the...

@john97 Does this issue only happen on the wireless devices? Please check if the devices that connect to the router via an Ethernet cable will work flawlessly when there is no internet on the...