If your shared drive is not appearing on your computer, here are suggestions for determining what is causing this issue:

1. Check that it is properly shared:
   Verify that the file or folder is properly shared on the computer it is stored on. If it is not shared, sharing the file or folder will make it available to other devices on the network.
2. Verify that the correct permissions are granted:
   Verify that the permissions for the file or folder allow access on the computer it is stored on. If the permissions do not have allow checked, modifications to permissions may need to be made.
3. Confirm that network discovery is turned on:
   Verify that network discovery is turned on in the computer's network settings. If network discovery is off, turning it on should make the shared resource visible on the network.
4. Check the computer's firewall settings:
   Verify that the firewall settings for the computer the file or folder is stored on are not blocking network access. If the firewall is blocking access, add an exception for the file or folder being shared.