About 3 years ago I have bought the x20 3 set. I was very happy with it until after 8 months 1 satellite unit got the blinking red led. I checked the internet and as suggested I placed it next to the...

Update, the red flashing starts right after plugging the power cord in. It does not start with yellow

I have a deco x20 3set. Today I noticed the one which is the fardest away from the main module has a flashing red light. I have taken it downstairs to the main module to have the best connection, but...