Here are some steps you can try to fix a shared drive that keeps disconnecting:

1. Restart the device where the drive was connected.
2. Check the file sharing and network settings.
3. Check if a firewall or other security software is blocking the connection.
4. Disconnect any unnecessary cables, then reconnect them
5. Check the network you're connected to.
6. Test the drive on another computer/device.
7. Reset the network settings.
8. Make sure the drive is connected properly.
9. Check the cables and network adapter.

If you've tried all the steps suggested above and you're still experiencing difficulties with the shared drive, you may need to contact your network administrator or IT support for further assistance.