[Nut-upsuser] Keep on losing communication: Raspberry Pi, CyberPower PR1500LCD

[Rory Jaffe]

Everything runs fine for several hours, then communication is lost and nut
doesn't reestablish communication on its own.

Running sudo upsdrvctl stop then sudo upsdrvctl start reestablishes
communication.

OS Version: Linux piaware 4.9.35-v7+ #1014 SMP Fri Jun 30 14:47:43 BST 2017
armv7l GNU/Linux
Nut Version: 2.7.2-4
Nut Installation Method: apt
Device: CyberPower PR1500LCD
Uses
​ ​
Generic HID driver 0.38 (2.7.2)

Configuration files
​===============​
​
#nut.conf
MODE=netserver
=
​===============
​
#ups.conf
maxretry = 3
[MainUPS]
        driver = usbhid-ups
        port = auto
        desc = "CyberPower PR1500LCD"
=
​===========
​
#upsd.conf
LISTEN 127.0.0.1 3493
LISTEN ::1 3493
LISTEN 192.168.1.101
=
​============
​
#upsd.users
[testuser]
        password = passwordhidden
        instcmds = test.battery.start.deep
        instcmds = test.battery.start.quick
        instcmds = test.battery.stop

[upsmonitor]
        password = passwordhidden
        upsmon master

[monuser]
        password = passwordhidden
        upsmon slave
=
​=========
​
#upsmon.conf
MONITOR MainUPS at localhost 1 upsmonitor passwordhidden master
MINSUPPLIES 1
SHUTDOWNCMD "/sbin/shutdown -h +0"
POLLFREQ 5
POLLFREQALERT 5
HOSTSYNC 15
DEADTIME 15
POWERDOWNFLAG /etc/killpower
RBWARNTIME 43200
NOCOMMWARNTIME 300
FINALDELAY 5
=
​=================
​
#upssched.conf
CMDSCRIPT /bin/upssched-cmd
==================
​
l
​susb output
Bus 001 Device 006: ID 0bda:2832 Realtek Semiconductor Corp. RTL2832U DVB-T
Bus 001 Device 005: ID 24c0:0003
Bus 001 Device 004: ID 0764:0601 Cyber Power System, Inc.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514
Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
===============
upsc output
battery.charge: 100
battery.charge.low: 10
battery.charge.warning: 20
battery.mfr.date: CPS
battery.runtime: 15030
battery.runtime.low: 300
battery.type: PbAcid
battery.voltage: 24.0
battery.voltage.nominal: 24
device.mfr: CPS
device.model: PR1500LCD
device.serial: PQ8DV2000482
device.type: ups
driver.name: usbhid-ups
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.7.2
driver.version.data: CyberPower HID 0.3
driver.version.internal: 0.38
input.voltage: 123.0
input.voltage.nominal: 120
output.voltage: 127.0
ups.beeper.status: disabled
ups.delay.shutdown: 20
ups.delay.start: 30
ups.load: 5
ups.mfr: CPS
ups.model: PR1500LCD
ups.productid: 0601
ups.realpower.nominal: 1050
ups.serial: PQ8DV2000482
ups.status: OL
ups.test.result: Done and passed
ups.timer.shutdown: -60
ups.timer.start: -60
ups.vendorid: 0764
​
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