@Theofrast Hi Theo, the flashing red wifi led means that the extender is experiencing poor signal strength. Try relocating it closer to your host router. You can check the LED indicators explanation...

@Olle Hello, you can choose using the following IP address to assign it a static IP address which is in the same subnet as the main router. Then you can click reboot to apply the settings. What I...

@zomk Thanks for your information, the Deco M9 plus supports PPTP/L2TP/IPsec VPN passthrough by default. What is the current network diagram? Please ensure that the port forwarding setting is...

@Flashie99 What is the current network diagram? Do you use the Archer C1200 with the old router together? Or you want to replace it with C1200? Please ensure that the configuration parameters are...

@Kidnikki Hi Angel, you can refer to this thread and get the beta firmware for this Archer C5400X. https://community.tp-link.com/en/home/forum/topic/111712 Note: It is attached to my reply which has...

@SSMP Thanks for your information, we need do further troubleshooting to locate this issue and solve it. 1. What is the led status of Archer A9 when this error message pops up? 2. Please click setup...