@Clive_A Hi, The router is connected to the controller via Internet, not via VPN. I can manually disconnect S2S VPN on the device and it still reports to controller. Moreover, when the problem...

@Clive_A On Site's router there is only one, default LAN - 192.168.100.1/24 and router's IP address is 192.168.100.1 which responds.

@Clive_A Hi, Thanks for your reply. How should I check that: Does the WAN still get an IP address? Since I can't log into router, it has no connection to controller, ping from WAN do not response....

@_username I haven't raised any ticket myself yet but I guess I would go with: https://www.tp-link.com/en/support/contact-technical-support/#E-mail-Support Usually, when there's a problem which can...

@_username Hmmm, I've checked that and this option desn't show anything for me as well: Do you need that option tho? Doesn't the ISP provide an IP to your router automatically after providing...

@_username Hi, Are you changing the Connection type from Dynamic IP to Static IP?