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Forum Discussion
System: Error communicating with UPS 'UPS1' (Back-UPS NS 1500M2)
Hi,
I am getting the message System: Error communicating with UPS 'UPS1' (Back-UPS NS 1500M2) followed by System: Communication with UPS 'UPS1' (Back-UPS NS 1500M2) is OK dozens of times a day. At some point the NAS gets stalled.
It is an old ReadyNAS Ultra 6, running firmware 6.10.9.
Not sure if there is any solution to this.
8 Replies
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Since 6.10.9 is relatively new, have you noticed the on a previous OS, or only since moving to 6.10.9?
Thank you for following up. Yes, I did see it with 6.10.8. That is why I did upgrade to 6.10.9, but I still did see it happening.
This is with an APC UPS? I am using an APC UPS with my RN526x, and am not seeing these errors. The model is different though - the NAS lists it as "Back-UPS XS 1500M".
I've seen something similar with a CyberPower UPS, but just ignored it. The NAS still managed to do a clean shutdown when the battery in the UPS drained. I didn't see any evidence of the NAS "stalling" in my case. Perhaps try disconnecting the cable for a while, and confirm that the "stalling" is linked to the UPS connection.
You could try a different USB port on the NAS. If you have other USB devices connected to it, you might also try disconnecting them, and see if that makes any difference.
Is there an APC Back-UPS NS 1500M2 connected, e.g. on a USB port? Looks like it's detected somehow, but no longer fully workable.
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