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Lantronix NTC_50x Software
Software Release Notes
Copyright 2025 (c) Lantronix Inc.
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RELEASE SUMMARY
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Version:      2.1.0.0R3
Release Date: Nov 28, 2025

Previous version was 2.0.0.0R10 on Nov 13, 2025

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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_2.1.0.0R3_root.signed.star : NTC_501
2) ntc_502_2.1.0.0R3_root.signed.star : NTC_502

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NEW FEATURES/TASK
===================


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Bug Fixes
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1	.   Prevented cross-version firmware loading to ensure compatibility—3.x.x.x firmware can no longer be loaded onto devices running 2.x.x.x, and vice versa: S-2811 	
2	. 	Fixed an issue where generating the web server certificate caused NTC-55x devices to become unreachable after CA key creation: S-2780
3	. 	Resolved an issue on NTC-55x where OpenVPN server certificate creation stalled during Diffie-Hellman parameter generation: S-2775
4	. 	Corrected a problem where, after a factory reset, Percepxion displayed the host URL as api.mach10-dev01.lantronix.com instead of api.percepxion.ai: S-2829
5	. 	Prevented secure-boot-enabled NTC-55x devices from accepting the 3.1.1.0R2 Lantronix firmware push: S-2826
6	. 	Fixed an issue on NTC-5xx where the configuration version did not update on the Telemetry and Device Details pages in Percepxion: S-2680

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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. Percepxion client configuration page will be displayed under Services following a factory reset. 

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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