Hi @David-TP, Thanks for getting back to me. I can't be sure exactly, but we got them in 2 lots during lockdown, so my guess is they are around 3/4 years old. Based on that link it says TFTP tool -...

Hi, I have the Deco M5 system, with 6 units. All but one have connected to a new network (there is only one), but the last one is flashing green (apparently this means a firmware update, but the...