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@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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