@BenH070 If the M9s you have are performing well against your needs and you only need to expand the mesh coverage, then adding another M9 (same hw version) seems to be a logical move. Otherwise,...

@TP-Link_Deco Thank you for replying. The issue here is that it is not clear what M9 features will be lost when mixing it with other Deco models. You mentioned some but is this all? TP needs to...

@IamThor I recommend that you don't mix models. I was in the same situation, owning 3 M9s and wanting to expand my mesh. I decided to go with more M9s to mitigate the risk of functionality loss at...

@Willem_3 Here is my overdue reply/report. To make a long story short, I managed to update to 1.4.0 successfully. I would like to share the following and I hope the community, including TP, will find...

@Willem_3 Thank you for the additional assurance. With no clear timeline for update via the app (strong preference), I will go ahead and update using the link as I can no longer put up with the...

@StankOnya This is very helpful. Thank you for sharing. Will appreciate further input from those who use the M9 in mixed mesh. I kindly ask TP support to clarify to us the hardware differences...