@Mtsarigul @timp78 Hello, thanks for your interest. Actually, this version improves the system security and there are no new features added yet.

@Okapy Hello, thanks very much again for bringing this up again. We have noted this issue and we will soon release a new firmware to allow users to change the wireless security type on the Deco...

@TommyA Thanks very much for your update and sorry about that. Our developers are also working on the Deco mesh roaming mechanism and we will keep improving it with new firmware updates. Good days.

@Theofrastus Hello, It is suggested to update the firmware of your Deco M9 Plus first, here is the suggestions you may refer to: https://community.tp-link.com/en/home/forum/topic/212300 May it help.

@Carboy Hello, There won't be an issue if you wire one or two Deco node to the other in the mesh network, it will work. Just ensure the main Deco is wired to a modem or an internet port on the wall...

@solderchicken Hello, you may download the Upgrade Tool for MAC from the TP-Link official website: https://www.tp-link.com/support/download/deco-m9-plus/#Utility