@TP-Link_Deco I changed it to AP mode and problem solved. much appreciated...

@TP-Link_Deco thanks for your reply, if I changed it to AP will it effect the performance of the deco or not?

Hi, I'm not an expert in networking setup and I have an issue when I installed my Deco M9. My existing router has an static IP address with some port forwarding setup for my cctv remote viewing,...