@the_vinman 

Here is an article that shows how to switch the Deco to AP Mode: https://community.tp-link.com/us/home/kb/detail/334

From what you described as far as connecting one of the nodes and setting it up regularly then switching to AP Mode is correct. As far as the other nodes you can have placed where you want, they do not need to be wired as the main Deco will send the configuration to the other nodes automatically.

You can name the Deco mesh network to be the same as your Netgear, just note that if a device connects from the Deco to the Netgear Wi-Fi or vice versa you will see a drop in connection as it moves over. It would be no different than manually connecting to another network via the Wi-Fi menu on your phone for example.

Here is a post with some info as well about AP Mode: https://community.tp-link.com/us/home/forum/topic/204016

@the_vinman thanks for the info, ill be trying to set this up this weekend

@Tony 

Im having issue setting up my deco ac1200. I wish to setup my deco with my existing router to set my deco as access point. 

I've tried several times using the guide you sent above, i will have to setup from the first till the final step, however the deco itself couldn't detect any internet despite I've keyed in every single details needed and the deco would turn solid red light and the network created would disappear and I'll have to start all over again.

Kindly advise 🙏 

@Sinonysim 

The router you are connecting the Deco to is likely blocking the Deco from properly reaching out to the internet. The Deco would not revert of any sort so that could mean something else is possibly wrong.

Try setting the Deco up as the main router to see if it is capable of working at least in router mode. Going back to your original setup, you could try assigning an IP to the Deco WAN port while it is in router mode, then in your main router setting the Deco WAN IP as a DMZ to see if the router is blocking it.