[Nut-upsuser] [nut-upsusers] NUT 2.8.0r3 | NUT-clients are loosing connection to UPS over SNMP-driver

[Andre Mueller]

Hello

Becoming somewhat "desperate" I configured and tested (for hours) to get 
a NUT-Server/Client 2.8.0r3 installation to work together with a 
CyberPower OLS1500 UPS over SNMP v3.

As NUT-packages for  ubuntu are still at version 2.7.4 and this 
NUT-SNMP-driver does not report very much information from the 
CyberPower UPS, I decided to compile/install from source the 2.8.0r3 
version with the following configure settings:


./configure --with-snmp --with-cgi --with-scanner  -with-docs 
--with-user=root --with-group=nut  --sysconfdir=/etc/nut/


now with version 2.8.0r3 I get over upsc full information from my ups 
(named ups00) over SNMP. Also NUT-cgi reports full information and is 
refreshed accordingly.


/usr/local/ups/bin/upsc ups00
battery.charge: 100
battery.current: 1
battery.runtime: 2880
battery.runtime.elapsed: 0
battery.voltage: 54.60
battery.voltage.nominal: 48
device.contact: Administrator
device.description: UPS SNMP Card
device.location: Server Room
device.mfr: CYBERPOWER
device.model: OLS1500ERT2UA
device.serial: 3003070Z30000042
device.type: ups
driver.name: snmp-ups
driver.parameter.pollinterval: 1
driver.parameter.port: 192.168.1.10
driver.parameter.secLevel: authPriv
driver.parameter.snmp_version: v3
driver.parameter.synchronous: auto
driver.version: 2.8.0-rc3
driver.version.data: cyberpower MIB 0.51
driver.version.internal: 1.21
input.frequency: 49.90
input.voltage: 232.50
output.current: 1
output.frequency: 49.90
output.voltage: 232.50
ups.delay.reboot: 0
ups.delay.shutdown: 180
ups.delay.start: 0
ups.firmware: OS02RV07
ups.load: 17
ups.mfr: CYBERPOWER
ups.model: OLS1500ERT2UA
ups.serial: 3003070Z30000042
ups.status:


Also the NUT-Server (v2.8.0r3) seems to works correct and 3 NUT-clients 
(1 local, 2 remote) can login correctly to the NUT-Server and to the ups00.


nut-server[1069]: User upsmon at 127.0.0.1 logged into UPS [ups00]
upsd[1069]: User upsmon at 127.0.0.1 logged into UPS [ups00]
nut-server[1069]: User upsmon at 192.168.1.211 logged into UPS [ups00]
upsd[1069]: User upsmon at 192.168.1.211 logged into UPS [ups00]
nut-server[1069]: User upsmon at 192.168.1.11 logged into UPS [ups00]
upsd[1069]: User upsmon at 192.168.1.11 logged into UPS [ups00]


Unfortunately all NUT-clients (also the local NUT-client) are reporting 
directly after the first refresh and then continuously, that they have 
lost connenctions to the ups00 but they are still loggedin to the 
NUT-Server.

...
nut-monitor[1078]: UPS ups00 at localhost is unavailable
nut-monitor[29503]: Network UPS Tools upsmon 2.8.0-rc3
...

So my question is, what could be "wrong" in configuration and/or 
installation, that all clients (local or remote) are reporting that they 
have lost connection to the ups00 and that it is not unavailable?


Many thanks in advance for any hint, best