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I put the newly created mango.properties file in the mango root folder, just with the specific lines as above. This worked

@mwright Further to this, "restarting of Mango fixes the issue", without doing anything with Windows. Suggesting that if Windows did grab the COM port for some process, it re-released it after. I'm not asking for anything, but future updates might include attempts to re-open the COM ports once this error is encountered, as this error just kills the data source.

So it's a standard Modbus response: 05 ACKNOWLEDGE The slave has accepted the request and is processing it, but a long duration of time will be required to do so. This response is returned to prevent a timeout error from occurring in the master. The master can next issue a Poll Program Complete message to determine if processing is completed

@lgorence https://docs-v4.radixiot.com/clean-mango-properties-file

@MattFox thanks for your help, ISO formatted It has worked correctly with the ISO timestamp format.

@CraigWeb thank you. I start fresh and restore with System settings -> SQL database backup -> select latest core-database-H2 zip file. Is that enough? I check the Data point detail and found nothing in history :| Is there something I miss? I see also see MangoNoSQL-incremental-Mar-12-2023_063732.zip in backup folder but I have no idea how restore this file. Update: I restored from another backup file and found out that that latest is broken. All data is lost. Thank you all for your help.

@MattFox yes we are aware of the email problem and are working on it.

@Juan-Mark please refrain from reviving dead threads.

@tungthanh500 Going out on a limb here (and assuming you've got mango4), but I suspect it's mango/data/excelReports/report-data Fox

@jdiaz-co What version of Mango? What is in the log file around this time?

@joelhaggar Thanks. Will send the email.

@Balistar Worth noting that Phillip no longer works at Infinite Automation / Radix IoT. He used to provide a lot of the support. I hope you get the support you need in the forum soon!

Hello, I had the same problem, I upgrade manually modules and core and everything is working. Don't forget to delete the old core! HTH