Hi,
Thank you for your post.
Before going any further, I’d like to confirm the following things.
1. Where does this issue happened, on server or client?
2. Can you download some large files from the Internet on the problematic machine?
3. What do you mean about “unreliable internet connection”? could you tell us more details?
If the issue really related to poor internet connection, I suggest you change it. You may access the internet from a well connection to see if it works.
Regards,
Nick Gu - MSFT