I've ran into an issue over the past couple of weeks that I haven't seen before. A customer in a domain environment with server 2008 r2 just got a new network all-in-one device (SAVIN MP C305). A vendor went on-site and set this up to send inbound faxes to a network folder via FTP. FTP is configured via filezilla server and we used the same process with the prior brother printer that the new all-in-one replaced.
The vendor created a folder called "incoming faxes" that these faxes are sent to as a PDF document.
Two users access these files from two different computers with two different user accounts. Sometimes (yes, this is intermittent), the users see different files in the same folder. One user may see 4 PDFs while the other sees 1 or none. After rebooting the computer, or checking back 2 hours later, both computers will see the same number of files. Hitting F5 to refresh the folder shows no change.
Steps we have tried:
We have verified folder permissions are good (ie both users are in the same groups, user group has full control over files in the folder).
We have verified file permissions are good (double checked to make sure files in the folder have the same permissions.
We have deleted and re-created the "incoming faxes" folder and reworked permissions
When we are lucky enough to see the problem, we have browsed to both mapped drive location and full UNC path on the network with the same results. we have browsed via DOS window and performed a DIR on the folder and it shows the folder is empty with zero files. At that exact same time, the other computer showed 2 PDFs.
We have never had an issue like this on this customer's server before or their network. The domain controller is about 2 years old. All switches are passive, network is gigabit. They have many other shared and mapped folders and have no problems with inconsistent data anywhere else. This only happens on the 1 folder after adding new printers to the network.