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jetheroheller's avatar
Feb 21, 2016

RNDU600 on OS6.4 suddenly reports "Cannot communicate with UPS UPS ()."

How do I troubleshoot "Cannot communicate with UPS UPS ()"   I've been using this APC BACKUPS 1200XS UPS plugged directly into this NAS for about 5 years now, with no issues, including when I chang...

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