which version of Filemaker are you running?
Can you connect to her PC in the network?
It could of course be that your version of FileMaker is not Windows 10 compatible, which version of FileMaker do you have?
Another problem could be that the Windows 10 installation has activated the standard Windows Firewall preventing access to you FileMaker host.
Running Ver 13… I can connect to her PC.
Running 13. Never thought about the firewall…
Then you need to check the firewall first. If it is the culprit you will need to change it's settings.