So my dad called in Unifi guy to fix our internet problems and they claim router is broken, Today new router came in and still no connection. Router says "Network cable is uplugged" so does that mean this whole time its not the router but their line ? Also how's your experience with streamyx/unifi lite lately.

Did the technician not check the line after replacing the router?

I assume he came in and did something idk and said that, when i woke up i heard someone talking not for long and left, dad told me router is broken. no he did jack shit

How the router show Network cable is unplugged?

Here usual is their line problem when called up they first check the box and outside line and they fix it.

Very seldom they come to home unless your modem really got problem.

Yes..Normally like that.