OK, so we'll try to resolve this issue.
I would suggest you to run Network troubleshooter, it will automatically troubleshoot the network problem and check. If it helps.
- Press Windows + X keys on the keyboard and select Control Panel.
 - Type Troubleshooting in the search bar on the Control Panel.
 - Click on View all on the left navigation pane.
 - Click on Network troubleshooter.
 - Click on Advanc...