Issues

• libupsclient: SSL sessions ignore the read/write timeout, so upsmon blocks until TCP gives up and DEADTIME never fires

  Connection stability issuesSSL/NSS
  networkupstools/nut#3829 · Filter by author greogory opened on Nov 8, 2026 · 2.8.6

• usbhid-ups (ever-hid): EVER SINLINE 2e51:0001 input/output voltage clamped to 300 V

  enhancementUSBUSB-HID encoding/LogMin/LogMax/Exponent
  networkupstools/nut#3823 · Filter by author piotrmoron opened on Nov 6, 2026 · 2.8.6
  1

• apcmicrolink driver: ups.status should track the freshest source immediately; stale measurements are acceptable

  APCConnection stability issuesIncorrect or missing readingsShutdowns and overrides and battery level triggers
  networkupstools/nut#3822 · Filter by author nmbro opened on Nov 6, 2026 · 2.8.6

• apcmicrolink driver: recover a stalled-but-present USB tunnel by reopening the handle, not a bus reset

  APCConnection stability issuesUSB
  networkupstools/nut#3821 · Filter by author nmbro opened on Nov 6, 2026 · 2.8.6

• Windows: nut.exe relaunches drivers every maxstartdelay seconds because upsdrvctl's normal exit is treated as a crash

  bugservice/daemon start/stopWindows
  networkupstools/nut#3818 · Filter by author JDProfresh opened on Nov 2, 2026 · 2.8.6

• TRACKING IDs repeat after every upsd start: nut_uuid_v4() uses rand() without srand()

  AIenhancementHardening
  networkupstools/nut#3817 · Filter by author nmbro opened on Nov 1, 2026 · 2.8.6

• nutdrv_qx voltronic-qs-hex: ups.load discarded as "non significant value" (0665:5161, firmware PM-P, NJOY Horus Plus 600)

  impacts-release-2.8.4Incorrect or missing readingsQx protocol driverVoltronic
  networkupstools/nut#3815 · Filter by author DanyChrys opened on Nov 1, 2026 · 2.8.7
  3

• CI: drop the per-distro Jenkins spellcheck, and run fewer shellcheck quick tests once GHA-10 is in

  AICIportability
  networkupstools/nut#3812 · Filter by author nmbro opened on Oct 31, 2026
  3

• CI farm: a Jenkins restart fails every queued and running build, and nothing re-queues them

  CI
  networkupstools/nut#3811 · Filter by author nmbro opened on Oct 31, 2026
  3

• CI: skip allowed-failure cells on ordinary PR builds

  AICIquestion
  networkupstools/nut#3810 · Filter by author nmbro opened on Oct 31, 2026

• usbhid-ups: CyberPower AVRG750LCD (0764:0501) drops many times a day with "insufficient permissions on everything"; only a USB reset brings it back

  AIConnection stability issuesCyberPower (CPS)impacts-release-2.8.1impacts-release-2.8.5USB
  networkupstools/nut#3808 · Filter by author trassette opened on Oct 30, 2026 · 2.8.6
  7

• NUT app in Home Assistant crashes when connecting to Riello NWP1000

  Home Assistant (HA)impacts-release-2.8.5Incorrect or missing readingsRielloUSB
  networkupstools/nut#3807 · Filter by author steffenberthold opened on Oct 29, 2026 · 2.8.7
  1

• APC UPS Device Disconnect - Data Stale - NUT 2.8.1 (Could not open any HID devices)

  APCConnection stability issuesDebian Linux ecosystemimpacts-release-2.8.1USB
  networkupstools/nut#3805 · Filter by author MrRight-07 opened on Oct 29, 2026
  3

• snmp-ups 2.8.0: calibration OID is not re-polled after initial ASN.1 NULL response

  AICyberPower (CPS)impacts-release-2.8.0Incorrect or missing readingsSNMP
  networkupstools/nut#3804 · Filter by author truAlexeyRu opened on Oct 29, 2026 · 2.8.7
  3

• Question : Monitoring multiple UPS

  question
  networkupstools/nut#3800 · Filter by author aarnold-sd68 opened on Oct 27, 2026
  1

• APC Back-UPS RS 1300 LCD: battery.date changes to invalid values when battery.mfr.date is written

  APCbugimpacts-release-2.8.5Incorrect or missing readingsunraid
  networkupstools/nut#3796 · Filter by author Potato314159 opened on Oct 23, 2026 · 2.8.7

• Regression: upsdrvctl shutdown skips UPSes with sdorder > 0

  bugimpacts-release-2.8.3impacts-release-2.8.4impacts-release-2.8.5Shutdowns and overrides and battery level triggers
  networkupstools/nut#3793 · Filter by author billr73 opened on Oct 21, 2026 · 2.8.6

• usbhid-ups/cps-hid: output.voltage masked to 8 bits on PowerWalker VI 2200 RLE (0764:0601) - LogMax -1 reinterpreted as 255 for 16-bit ReportID 0x12

  CyberPower (CPS)impacts-release-2.8.0Incorrect or missing readingsSynologyUSB-HID encoding/LogMin/LogMax/Exponent
  networkupstools/nut#3789 · Filter by author GrizzlyCH opened on Oct 20, 2026 · 2.8.5
  2

• [HCL] <Eaton> <3P Ellipse / 3P700UD> <usbhid-ups>

  EatonHCLimpacts-release-2.8.5USB
  networkupstools/nut#3785 · Filter by author ihKNJS9IH8 opened on Oct 19, 2026

• configure: --with-usb=auto does not fall back to libusb-0.1 when libusb-1.0 is too old

  CIenhancementportability
  networkupstools/nut#3781 · Filter by author nmbro opened on Oct 18, 2026 · 2.8.6

• Ugreen US2000 (2b89:ffff): telemetry is firmware-dead, real values only in a pushed HID report

  documentation-protocolUSB
  networkupstools/nut#3779 · Filter by author reklrekl opened on Oct 18, 2026 · 2.8.6

• usbhid-ups (Belkin/Liebert HID): Liebert PSA 10af:0001 battery.runtime truncated – RunTimeToEmpty inherits LogMax=100 for 16-bit field

  impacts-release-2.8.1impacts-release-2.8.5Incorrect or missing readingsUSB-HID encoding/LogMin/LogMax/ExponentVertiv/Liebert
  networkupstools/nut#3777 · Filter by author m2teusz opened on Oct 18, 2026 · 2.8.7
  2

• Ragtech Driver: can't communicate with Easy Way 1500 GT

  impacts-release-2.8.5Incorrect or missing readingsRagtechUSB
  networkupstools/nut#3755 · Filter by author pedroaugustosmribeiro opened on Oct 13, 2026 · 2.8.7
  24

• Documentation proposal: task-oriented navigation and clearer setup journeys

  AIdocumentationVolunteers welcome
  networkupstools/nut#3750 · Filter by author user01010111 opened on Oct 11, 2026 · 2.8.6
  1

• Clarify remaining TLS, discovery and driver documentation contracts

  AIdocumentationquestionSSL/NSS
  networkupstools/nut#3747 · Filter by author user01010111 opened on Oct 11, 2026 · 2.8.7
  2