@RaviDaiya You can check with both the links from below.
This link below provides information about the coloured lights on the various hubs that can help to see what is going on! If the system is also Full Fibre then the lights on the OR/CF ONT also require to be looked at!
https://www.sky.com/help/articles/hub-lights-explained-start
And/or
If you haven’t done it already use the below link to check to see if there are any broadband problems or outages nearby if enough time has passed for a fault condition to be displayed by the software test! This should determine if there's an identified fault affecting multiple households.
https://www.sky.com/servicechecker
