Stange behavior with Windows Explorer and Data ONTAP v9.1p12

EricLEBRUN — Wed, 04 Jun 2025 13:12:04 GMT

Hi the experts,

We have raised a strange behavior with Windows Explorer running on Win7 or Win 10 station, trying to open/modify/save file located on Data ONTAP v9.1R12 filer (CIFS: SMB V1), here is the scenario:

- Put Windows Explorer on same folder than file test4.xlsx: K:root\Infra\Test\
- Open K:root\Infra\Test\test4.xlsx file with Microsoft Office Excel
- Make changes on file K:root\Infra\Test\test4.xlsx
- Save it <- OK

- Put Windows Explorer on upper level folder than folder of file test4.xlsx: K:root\Infra\
- Make changes on same file K:root\Infra\Test\test4.xlsx
- Save it <- Error (Document not registered error)

Important points:
- Error occurs only with xlsx and sometime with xls extensions
- Error occurs only with Microsoft Office (2010, 2013 and 2016) and never with OpenOffice
- Error never occurs with 7-Mode NAS whatever

Thanks for your futir advices !

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Stange behavior with Windows Explorer and Data ONTAP v9.1p12