- L1 serves as a USB drive, not a network file server. It only appears on the computer if you connect a USB cable from the computer to the L1.
- If the L1 is in NTFS format, Mac needs additional software to be able to read it
- If the computer should be capable of reading the file system, try doing a file system scan and repair on the computer (do it from Windows if in NTFS format). Alternatively, re-format the L1.
- If Lumin app cannot see U2 Mini on the network, disable computer firewall, and grant all network permissions especially Local Network to the Lumin app