Details of complaint: the customer reported that the org failed causing the central nurse's station (cns) to go into signal loss with the transmitters.The customer indicated that rebooting the org seem to help; however, the issue came back after a short period of time.No patient harm was reported.Service requested / performed: troubleshooting: nk ts was unable to troubleshoot the issue with the customer.However, the customer thought that a cns software upgrade (from v 1-06 to v 2-40).Would resolve the issue.Investigation summary: the device was not returned for physical evaluation and functional analysis.The customer was provided with instructions on how to upgrade the cns software.It was not explicitly stated by the customer that the issue had been resolved.An historical review of the of the serial number showed there were no further complaints regarding the cns after this ticket, which suggests that the software upgrade may have helped in resolving the issue.Based on the available information, a definitive root cause could not be identified.However, it is possible that the issues experienced by the customer was due to an outdated software version.Per sop07-003, no capa is required as the overall risk rating of the event is medium.Additionally, the root cause was unable to be determined.The quality event does not warrant a corrective action.Without a root cause, the counter measure to prevent recurrence cannot be performed.Additional device information: d10 concomitant medical device: the following devices were used in conjunction with the org: cns: model #: ni, serial #: ni.Transmitters: model #: ni, serial #: ni.
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