Hi,

I have 3 pieces of  Deco XE75 which I canfigured as mesh. It was working fine for months already. Unfortunately, today, the main router got RED LED light and I have no internet. I check the port on my modem where the XE75 main router is connected using my laptop. My laptop has internet. I connected my old router to the same modem port where my XE75 is connected, my old router has internet too. 
 

I tried to reset the main XE75 router. I can setup the router but on the point when it is going to test the internet, it failed. I tried to setup the other two XE75 routers too but again all cannot connect to the internet. I used Dynamic IP. Please advise the issue with my routers.

thank you for the help.

Regards,

Bobby