Glad to hear that it is working properly finally; thanks for your reply. Please let us know if we can be of further help. Have a nice day.

Hi Stephen, The firmware you upgraded need match its hardware, in other word, you can update the firmware for V4 only, the hardware version cannot be upgraded. The first router is C9 V5, that is why...

Hi, The guest network is open by default, that means other devices can connect to the network without permission. While you can customize the wifi settings of the guest network, Open Deco app, go to...

You are welcome, please let me know if you need any further help. Have a nice day.

Hi, The Deco M9 plus supports TP-Link DDNS; once you opened the Deco APP, click more-advanced-TP-Link DDNS to enable and configure it. Here is an instruction you can refer to:...

Hi, Please try to disable the anti-virus software and firewall first; then try to ping the client from the server and test whether it works. If still the same, please show us a screenshot of the ping...