EPC Version 3.1.156
    • 11 Feb 2026
    • 2 Minutes to read
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    EPC Version 3.1.156

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    Article summary

    Nectar Endpoint Client 3.1.156

    Overview 

    Nectar EPC 3.1.156 introduces enhanced codec support, autonomous test scheduling, dynamic resource reservation, TLS 1.3 management connections, and improved VPN and P2P networking performance.

    This release also includes significant stability improvements, certificate management fixes, and resolution of multiple VoIP, video conferencing, TLS, and Windows-specific issues.


    Supported Platforms

    macOS 11.5+ (Universal)
    RHEL v8 / v9 / v10 (x86_64, ARMv8-A)
    Ubuntu 22–24 (x86_64, ARMv8-A)
    Debian 12 (x86_64, ARMv8-A)
    Windows 10 / 11 (x86_64)
    Android 9+ (API 35, Universal)


    New Features & Enhancements

    Core Platform
    • Support for additional voice and video conferencing codecs
    • Autonomous test scheduling
    • Dynamic test resource reservation per interval (replaces static reservation model)
    • TLS 1.3 management connections with load balancing
    • Automatic local network interface and/or IP selection
    • Improved VPN networking and split tunneling support
    • Enhanced P2P network capacity measurement

    Networking & Connectivity

    • Improved handling of VPN-connected agents
    • Enhanced SIP over TLS behavior
    • Improved media stream handling across interfaces
    • More reliable interface tracking when network conditions change

    Resource Management

    • Test resources dynamically reserved per interval
    • Improved efficiency for concurrent test execution
    • Better handling of resource exhaustion scenarios


    Resolved Issues (Since 3.1.128)

    VoIP & SIP

    • Fixed fragmented H264 video stream over VPN
    • Resolved G729E/G729A codec interval identification error
    • Fixed SIP OPTIONS over TLS not using root CA certificate
    • Resolved TLS re-registration instability causing connection resets
    • Fixed Windows agent not processing incoming RTP audio/video
    • Resolved SIP registration retry interval misbehavior
    • Corrected embedded traceroute packets in non-established VoIP calls
    • Fixed incorrect internal IP returned when public interface specified

    Video Conferencing

    • Resolved fragmented media streams in conference sessions
    • Fixed 3% of CSV records containing unknown traceroute hops
    • Resolved “Unable to reserve resources” not reporting reason in JSON
    • Fixed localhost (127.0.0.1) interface issue on new Windows installs

    HTTPS & TLS

    • Fixed HTTPS test failures (YouTube, Netflix)
    • Resolved TLS negotiation failure in default HTTPS test plan
    • Fixed certificate loading, deletion, and replacement issues
    • Resolved Mozilla bundle replacement issues on Windows
    • Fixed GUI-loaded certificate not being applied correctly

    Agent Stability & Performance

    • Fixed AWS hub agent crash instability
    • Resolved Chromebook TCP RST issue every 15 minutes
    • Fixed overloaded hub failing to restart (critical issue)
    • Resolved VPN tunnel change not releasing UDP sockets
    • Fixed agent failing to track interface status when started without IP
    • Resolved incorrect CPU speed reporting on Linux

    Windows-Specific Fixes

    • Fixed incorrect binary metadata labeling
    • Resolved UUID change during silent upgrade (.128 → .156)
    • Fixed VPN interface IP not displaying in Agent Status
    • Resolved SentinelOne installer flagging issue
    • Corrected TLS client log message inconsistencies

    UI & Reporting

    • Fixed Agent Identity page not displaying interfaces
    • Resolved “Running Tests” incorrectly listed during update
    • Fixed OrgID:GroupID removal issue via Reporter
    • Corrected display and interface selection inconsistencies


    Known / Outstanding Issues

    • Graceful shutdown sends SIP unregister without credentials (Minor)
    • SIP registration using “Auto” transport retries every 5 seconds instead of 90 when password is incorrect (Significant)
    • Android agent does not validate email format on first launch (Minor)


    Reporting a Bug

    To report a suspected issue, contact Nectar Product Support at support@nectarcorp.com

    Please provide your deployment environment details and software release number when submitting a request.


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