Seeking Help 'No Signal' Problem in my dth connection

[adityagadekar1988]

Hello Everyone,

Last month, I purchased a STC H500 set top box from Flipkart & got it installed by local person.For few days, it worked well.
But after that, whenever I turn on it, it shows 'No Signal'.After 2 or 3 scans, it starts receiving signals.But everytime, I turn it ON,
I have to scan it again.I even tried other set top box from my friends, but the issue remains.
What can be the reason?Is it LNB or something else?

 

[adityagadekar1988]

Recently, I bought an Solid company's LNB from it's website for Rs. 184/-. and replaced it with my local one and my problem gone like it was not before.Signal quality also reached 80% from 58% and that too without changing anything else.