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QNAP

QuTS hero 5.0.x

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Thunderbolt Interface Configuration

The Thunderbolt screen displays port and connection information related to any Thunderbolt interfaces on the NAS.

Thunderbolt to Ethernet (T2E)

Thunderbolt to Ethernet functionality allows the Thunderbolt port to act as an Ethernet interface.

Tip:

QNAP recommends using Qfinder Pro when configuring Thunderbolt to Ethernet.

Important:

Due to Thunderbolt driver issues, T2E connections using Thunderbolt port 2 may have connectivity problems when connecting to Windows. Thunderbolt port 3 connections are unaffected.

Enabling T2E with Qfinder Pro

Qfinder Pro is a utility for Windows, Mac, and Linux that allows you to quickly find and access a QNAP NAS over a LAN.

For the current version of Qfinder Pro, please visit https://www.qnap.com/utilities.
Tip:

Qfinder Pro automatically configures the /etc/sysctl.conf settings file on macOS.

  1. Open Qfinder Pro.
  2. Locate the NAS using Qfinder Pro.
  3. Click the Thunderbolt icon.

    The T2E window opens.

  4. Select Enable T2E.
  5. Click Apply.

Enabling T2E on macOS

  1. Open the Terminal.
  2. Run the command.

    Command

    Notes

    sudosysctlnet.inet.tcp.path_mtu_discovery=0 && sudosysctlnet.inet.tcp.tso=0

    This command will only temporarily enable T2E. Restarting the Mac will delete the connection.

    sudo bash –c ‘printf “#QNAP\nnet.inet.tcp.path_mtu_discovery=0\nnet.inet.tcp.tso=0\n#QNAP\n” >> /etc/sysctl.conf’

    This command will permanently apply these settings.