Thanks, the app does indeed show that it does send out both bands, so it must be that something that I did or firmware update as you say. I still can't understand why TP-link support said it wasn't...

Fair enough. I cannot connect 2.4Ghz devices as I could before. If I turn off the 5Ghz slider so only 2.4Ghz is active I can connect them.

@Alexandre. I have done just that, but I only get a 5Ghz network out. The support (TP-link) says it cannot be done and tells me to use my guest network for 2.4Ghz. Does anyone know how I can fix it...

I have 3 Deco X60 which i have used for a year without issues but had some issues in the summer and we did a reset. Now i can only get a network with either 2.4Ghz or 5Ghz, not with both. I...