Model : Hardware Version : Firmware Version : ISP : It would be interresting to get a comment from TP-Link Deco on the performance/connection problems people experince after upgrading to fw 1.2.1!...

First, try connecting the Deco to your modem (PlusNet fibre) on the LAN side and register it there to eliminate the MAC filter possibility.

I had the same problem, it turned out my ISP used MAC filtering. Started by connecting the DECO to my LAN to get it registered. (Just don't update it) After that, connect to your modem and and call...

Is there any way to do this update in a safe way? I'm hesitating to do this, or any future, update, since it's not 100% safe to do it. And today (23/7) there is yet another post about connection...