Wsus Source Url not Work?

Hi to all
First: sorry for my bad english
So,
I've a Wsus Server and i would like use it with Wsus Offline Update 9.7 for download the update.
I've see a WSUS... Option in the footer but if specific a valid WSUS URL , the software continue the download from external source (Microsoft link etc..)
Is it correct?
Internal Url for my Wsus Server :
The final question is : i've really understand the function of that button ?
Thank You
First: sorry for my bad english

So,
I've a Wsus Server and i would like use it with Wsus Offline Update 9.7 for download the update.
I've see a WSUS... Option in the footer but if specific a valid WSUS URL , the software continue the download from external source (Microsoft link etc..)
Is it correct?
Internal Url for my Wsus Server :
- Code: Select all
https://192.168.76.80:8530
The final question is : i've really understand the function of that button ?

Thank You
