Transport endpoint is not connected

FUSE is constantly(every 2 – 3 days) giving me this Transport endpoint is not connected error on my mount point and the only thing that seems to fix it is rebooting.

I have exactly the same problem. I haven’t found a solution anywhere, but I have been able to fix it without rebooting by simply unmounting and remounting the mountpoint.

For your system the commands would be:

fusermount -uz /data
mount /data

The -z forces the unmount, which solved the need to reboot for me. You may need to do this as sudo depending on your setup. You may encounter the below error if the command does not have the required elevated permissions.