Hi,

I set up my 2 m5 mesh wifi system yesterday and it was was working perfectly. I got the main connected to the ethernet in the living room and the other one at the 2nd floor connected wirelessly. 
 

The setup was pretty straightforward and was able to use it as I expected. However overnight, the unit in the 2nd floor had a pulsating red signal and couldn't connect to the the main mesh in the living room. I didn't do anything in between the setup and the next morning but update the firmware and browse the internet. 
 

I already tried resetting both and setting it up again. I also switched both unit but it didn't work as well. It only works when both unit is side by side and up to 2 meters apart. It seems both unit cannot transmit signal beyond 2 meters. 
 

Please advise what to do.