Funny thing is that it only seems to happen in my house and exactly started playing up when a smart meter was recently installed. Phone is still missing rings often. I did some research and I found out that smart meters disrupt wifi, but it is not often talked about. Before I go down that road I'll rent an RF meter and make sure the s meter is emitting those waves and then if so, put a cage on it and maybe a screen on the inside wall behind where the meter would be as there is apparently new tech now on meters that can allow them to transmit a 360 signal instead of 180. Not sure if my meter can, but I will test for it.