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Lantronix NTC_50x Software
Software Release Notes
Copyright 2026 (c) Lantronix Inc.
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RELEASE SUMMARY
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Version:      2.4.0.0R8
Release Date: Jul 07, 2026

Previous version was 2.3.0.0R9 on Apr 9, 2026

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RELEASE STATUS
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  Alpha        ( )
  Beta         ( )
  Supplemental ( )
  Production   (x)
  Test         ( )

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PRODUCTS SUPPORTED
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NTC_50x
1) ntc_501_2.4.0.0R8_root.signed.star : NTC_501 (md5: ffb6d583a32276a4a028e2579635dbaf)
2) ntc_502_2.4.0.0R8_root.signed.star : NTC_502 (md5: e02cfe85186fc876c12cc387b59dedf1)

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NEW FEATURES/TASK
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1 . Percepxion WebUI, configuration page, status, and user experience improvements: (3145, 3109)
2 . Improved SIM switching WebUI/UX:(3104)
3 . Improved Web server security: (3096)
4 . Added root-privileged WebUI/SSH user support: (3095, 3157, 3156, 3148, 3121, 3117)
5 . Added read-only WebUI viewer user support:(3094, 3164, 3163, 3162, 3134, 3118)
6 . Improved WebUI: (3056)

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Bug Fixes
============

1 . Improved Percepxion connection mechanism: (3196)
2 . Improved Percepxion status and telemetry display: (3202, 3177, 3170, 3131, 3126, 3122)
3 . Fixed display status of Percepxion active connection : (3125)
4 . Improved Active SIM configuration behaviour: (3097)
5 . Improved WAN profile and Active SIM WebUI, : (3182, 3180, 3178)
6 . Improved LDAPS connection support: (3004)
7 . Fixed TR-369 data model/UI rebranding strings (NETCOMM / X_NETCOMM): (2943)

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REMOVED FEATURES
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KNOWN LIMITATIONS & ISSUES
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1) SHK-2638: Additional Features for Percepxion Support of NTC-50x Products
2) SHK-2713: When the account is locked, the user must wait for the default duration of 2 minutes or the time specified in the configuration settings.

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NOTES
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1) Default Configuration (SIM1 & SIM2)
    * APN, Username, and Password fields are left blank by default.
    * APN type: none
    * PDP type: ipv4v6

2) Default CID Settings
    * CID1 is enabled by default, and the default route is configured on this CID for both SIMs.
    * For Verizon or similar SIMs, users must manually enable CID3, set the default route on it, and disable CID1.

3) Perticular-SIM Configuration
    * To modify settings for a specific SIM, switch to that SIM before making changes.

4) SIM Switching Behavior
    * If the external SIM has been removed and user want to change its configuration, turn off the option:
      “Switch to internal SIM if removable SIM is removed.”
    
5) When upgrading from version v1.2.61.0/v1.2.62.0 to v2.0.1.0 /2.0.0.0 R5  or later, the APN, username, password, and authentication type values 
   will not be retained. Only the profile names will be preserved.
   Users are advised to perform a factory reset after the upgrade.

6) To fix issue SHK-2270, default values were added to the Periodic Ping configuration parameters.


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WARNINGS
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