Dear All 

i purchased the DEco S7 Set of three  last month  .

since the second day  Two units got into the blinking mode  of Red  or white 

keeping them close to each other never solved the problem .

Wrote to  TP link US they responded with several tests but nothing could solve the problem .

I had intimated them about finding the high frequency Acoustic Chirping noise .

They guided the local India office to look into it .

The only Mantra They have is deliver the units to their " Shop" in one of the most crowded areas in the city !

They have no policy to replace ! nor even pickup the faulty Units .

Now it is a month , The only working Main  unit also failed .

it is observed that all the power supplies make a high frequency audible chirping noise .

now All three are DEAD  , too much 

The problem seems to be a Design Defect .

How do we ensure we will get a newer unit  after the sol called service .

Now for a month the units have not worked , we dont have the connectivity as promised .

it is a futile exercise to let the technical or sales team about these defects .

time we moved on to a better product