hoping for help can the technology be explained how the home deco (located beside ISP) can talk to a remote deco wirelessly when wifi from my ISP router cannot reach that location / only have weak sig

hi all, i am new to mesh technology & have a few questions. hoping you can advise am looking at the m5 3 pack - 2 downstairs & 1 upstairs (older house with pretty thick concrete walls & signal from IS

hi, a bit confused, what's the point in getting a single pack deco m5 if it needs to be hardwired to the house ISP modem/router anyhow? does it provide superior range than an average modem/router or d