Ecoflow River 3 Plus - Cant connect

[Hounds-Ether]

Can not connect River 3 plus on new setup of the NUT server. Connected by USB.

Please, any help would be appreciated. I have trawled through a lot of forums now.

---

Yaml Config:
users:

• username: HAUPS
  password: "XXXXHJKIM"
  instcmds:
  • all
    actions: []
    devices:
• name: river3plus
  driver: usbhid-ups
  port: auto
  config: []
  mode: netserver
  shutdown_host: false
  remote_ups_name: HAUPS
  remote_ups_password: "XXXXHJKIM"
  list_usb_devices: true

Network Port - 3493

---

Logs -

Add-on: Network UPS Tools
Manage battery backup (UPS) devices

Add-on version: 0.16.1
You are running the latest version of this add-on.
System: Home Assistant OS 16.3 (amd64 / generic-x86-64)
Home Assistant Core: 2025.11.0
Home Assistant Supervisor: 2025.11.1

Please, share the above information when looking for help
or support in, e.g., GitHub, forums or the Discord chat.

s6-rc: info: service base-addon-banner successfully started
s6-rc: info: service fix-attrs: starting
s6-rc: info: service base-addon-timezone: starting
s6-rc: info: service base-addon-log-level: starting
s6-rc: info: service fix-attrs successfully started
[18:19:30] INFO: Configuring timezone (Australia/Sydney)...
s6-rc: info: service base-addon-log-level successfully started
s6-rc: info: service base-addon-timezone successfully started
s6-rc: info: service legacy-cont-init: starting
cont-init: info: running /etc/cont-init.d/nut.sh
[18:19:30] INFO: Setting mode to netserver...
[18:19:30] INFO: Connected USB devices:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 3746:ffff EcoFlow EF-UPS-RIVER 3 Plus
Bus 001 Device 003: ID 10c4:ea60 Silicon Labs CP210x UART Bridge
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
[18:19:30] INFO: Generating /etc/nut/upsd.users...
[18:19:30] INFO: Configuring user: HAUPS
[18:19:30] INFO: Password is NOT in the Have I Been Pwned database! Nice!
[18:19:30] INFO: Configuring Device named river3plus...
[18:19:30] INFO: Starting the UPS drivers...
Network UPS Tools - Generic HID driver 0.52 (2.8.1)
USB communication driver (libusb 1.0) 0.46
libusb1: Could not open any HID devices: insufficient permissions on everything
No matching HID UPS found
upsnotify: notify about state 4 with libsystemd: was requested, but not running as a service unit now, will not spam more about it
upsnotify: failed to notify about state 4: no notification tech defined, will not spam more about it
Network UPS Tools - UPS driver controller 2.8.1
Driver failed to start (exit status=1)
cont-init: info: /etc/cont-init.d/nut.sh exited 1
cont-init: info: running /etc/cont-init.d/nutclient.sh
cont-init: info: /etc/cont-init.d/nutclient.sh exited 0
cont-init: warning: some scripts exited nonzero
s6-rc: warning: unable to start service legacy-cont-init: command exited 1
/run/s6/basedir/scripts/rc.init: warning: s6-rc failed to properly bring all the services up! Check your logs (in /run/uncaught-logs/current if you have in-container logging) for more information.
/run/s6/basedir/scripts/rc.init: fatal: stopping the container.
s6-rc: info: service fix-attrs: stopping
s6-rc: info: service base-addon-timezone: stopping
s6-rc: info: service base-addon-log-level: stopping
s6-rc: info: service fix-attrs successfully stopped
s6-rc: info: service base-addon-timezone successfully stopped
s6-rc: info: service base-addon-log-level successfully stopped
s6-rc: info: service base-addon-banner: stopping
s6-rc: info: service base-addon-banner successfully stopped
s6-rc: info: service s6rc-oneshot-runner: stopping
s6-rc: info: service s6rc-oneshot-runner successfully stopped
s6-rc: info: service s6rc-oneshot-runner successfully s