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 device isn't connected.) 

I have tried resetting, but this problem persists.
 

Light sequence as follows: 

flashing green -> unplugged & replugged -> reset pressed -> flashing yellow -> solid yellow -> flashing green 

I've left it flashing green overnight incase it updates, but it doesn't. 

Would be grateful for anyone's help! 
 

Thanks!