I work with an ups pulsar m2200 and Nut 2.2 I installed psp all is OK but when the power to the UPS is cut I have these events Nov 20 11:36:39 mezenc upsd[2620]: listening on 0.0.0.0 port 3493 Nov 20 11:36:39 mezenc upsd[2620]: Connected to UPS [pm2200]: mge-shut-pm2200 Nov 20 11:36:39 mezenc upsd[2621]: Startup successful Nov 20 11:36:39 mezenc upsmon[2655]: Startup successful Nov 20 11:36:40 mezenc upsd[2621]: Connection from 127.0.0.1 Nov 20 11:36:40 mezenc upsd[2621]: Client user_ups at 127.0.0.1 logged into UPS [pm2200] Nov 20 11:41:15 mezenc upsmon[2656]: UPS pm2200 at localhost on battery Nov 20 11:41:15 mezenc upssched[3798]: Executing command: ups-on-battery Nov 20 11:41:15 mezenc upsd[2621]: Connection from 127.0.0.1 Nov 20 11:41:15 mezenc upsd[2621]: Client on 127.0.0.1 logged out Nov 20 11:41:15 mezenc upsd[2621]: Connection from 127.0.0.1 Nov 20 11:41:15 mezenc upsd[2621]: Client on 127.0.0.1 logged outand then the and after a few minuts I have an error data stale and my computer and my UPS shutdown Nov 20 12:05:44 mezenc upsd[2632]: Data for UPS [pm2200] is stale - check driver Nov 20 12:05:44 mezenc upsd[2632]: Connection from 127.0.0.1 Nov 20 12:05:44 mezenc upsd[2632]: Client on 127.0.0.1 logged out Nov 20 12:05:44 mezenc upsd[2632]: Connection from 127.0.0.1 Nov 20 12:05:44 mezenc upsd[2632]: Client on 127.0.0.1 logged out Nov 20 12:05:49 mezenc upsmon[2667]: Poll UPS [pm2200 at localhost] failed - Data stale Nov 20 12:05:49 mezenc upsd[2632]: Connection from 127.0.0.1 Nov 20 12:05:49 mezenc upsd[2632]: Client on 127.0.0.1 logged out Nov 20 12:05:59 mezenc upsd[2632]: Connection from 127.0.0.1 Nov 20 12:05:59 mezenc upsd[2632]: Client on 127.0.0.1 logged out Nov 20 12:06:04 mezenc upsmon[2667]: Poll UPS [pm2200 at localhost] failed - Data stale Nov 20 12:06:04 mezenc upsd[2632]: Client user_ups at 127.0.0.1 set FSD on UPS [pm2200] Nov 20 12:06:04 mezenc upsmon[2667]: Executing automatic power-fail shutdown Nov 20 12:06:04 mezenc wall[4075]: wall: user ups broadcasted 2 lines (43 chars) Nov 20 12:06:04 mezenc upsmon[2667]: Auto logout and shutdown proceeding Nov 20 12:06:04 mezenc wall[4078]: wall: user ups broadcasted 1 lines (37 chars) I use the psp script (upssched-cmd) and when I have these errors, battery.charge of my UPS is 60 and battery.charge.low is fix at 20 Can you help me ? Best regards Sabine Goudard