You have had lots of network issues. If checking samba is installed and running doesn't solve your issue, maybe:
Ensure devices are mounted correctly on actual devices. ( This is local storage devices, nothing to do with network mounts).
Describe your network setup in your house. Repeaters, wireless access points, homeplugs etc. This could identify a point of failure.
Ensure your enigma receivers have fixed IP addresses. Either set them to use Static IPs or reserve addresses on the router. Yes, you can use hostnames instead of IP addresses.
Recheck your network mounts on your receiver.
That will be a better way to diagnose and more importantly prevent problems.
