Mukesh_465, if there was a service outage the file wouldn't save to to Onedrive, would it? Similarly, the internet is working just fine for everything else.
I don't think it's helpful to offer generic connectivity troubleshooting as this is clearly not anything to do with connectivity.
This is a specific problem. Everything else is working. If I select "Anyone with the link can edit", a shareable link is created. If Send a link by email, the link is created. However - as I said in the original post - Create Shareable Link > Specific people is not working.
(I appreciate that you're going through a list of things that you think might be helpful, but you seem to be ignoring anything to do with the application/Microsoft service and suggesting that's it s a problem with the PC or it's internet connection.)