@5h4dow Sorry to hear that, but if it is, as you stated a " wrong pppoe implementation ", that means a FW issue, which has to be addresses by the TP-Link development team. So, your best bet would be...

@5h4dow The serial number and FW region can be seen only on the router bottom sticker, Store this picture somewhere safe, in case this information is needed in the future. Disable IPv6 on the AX55...

@5h4dow To potentially exclude a FW issue, what is your exact router model, HW version and FW region, refer its bottom sticker:

@5h4dow Common troubleshooting steps (if connection fails) If this log entry is associated with internet disconnection, check the following: MTU Size: Set the Maximum Transmit Unit (MTU) to 1492,...

@YASPE Different regions are scheduled to auto-update at different times. A "patch gap" or "staggered rollout," which is a common practice in software deployment to prevent widespread disruption and...

@nPHYN1T3 This FAQ will guide you through the process of deleting your TP-Link account.