TS LX4048 not possible to upgrade firmware using SFTP via TNCT/TNDM when it is running 5.3.7


Issue

Backup and software upgrade of Terminal server LX4048 via TNDM was failing with following error message

The issue was related to the inability of the Terminal Server to operate using sftp due to being on an outdated firmware version (5.3.7).

Environment

  • DIMETRA IP X-Core
  • Network Transport
  • Terminal Server (TS) LX4048
  • Firmware version prior to resolution: 5.3.7
  • Firmware version post-resolution: 6.2.4
    • Note: This process won't work with TS Software Version 4.1.6.
    • For TS on 4.1.6 please refer to KB0026114

Resolution

  • Change the file transfer protocol on the Terminal Server to tftp through the TS CLI.
  • The command to change file transfer protocol to tftp on Terminal server is

    InReach>> configuration file transfer protocol tftp

  • Adjust remote protocol and file transfer preferences in TNDM to "Telnet" and "Not Secure" transfer.

  • Load the firmware directly from the extracted software package using the .tar file of NFP by pointing to the extracted directory.

  • Conduct a firmware upgrade to version 6.2.4.
  • After upgrading, revert to "secure" and "Secure" in TNDM preferences, sftp functionality should work to allow seamless backups and upgrades/config deployment.