Error Code 64: Network Name no Longer Available on Large Files

[greenfrog5]

I have been using FFS successfully for several years. I recently upgraded my work laptop to a Surface Pro 4 with Windows 10, and have been having a problem transferring large files through our VPN. We also now use DirectAccess VPN, and I'm not sure if it is a problem with DA, my home internet connection, or with FFS itself. FFS works fine when I'm in my office (no VPN), but when at home, through DA-VPN, I am unable to transfer files larger than about 20MB. I consistently get this error message:

Cannot copy file... *.pdf to *.ffs_tmp...

Error Code 64: The Specified network name is no longer available. [CopyFileEx]

Small files work fine.

Thanks for any help

[goldcakes]

Did you ever find the answer to this problem? I'm having the same thing.

[greenfrog5]

Not entirely. Ultimately, I upgraded my internet connection and the issue mostly went away. I believe it is caused by some instability in the connection (either the internet itself, my home network or VPN) which eventually disrupts the longer/larger transfer, causing FFS to loose track of the file it was writing. I believe it always happened when uploading files, which makes sense because I have an asymmetrical cable modem, which only had 1Gbps upload when I was getting errors.

I suspect that the faster internet (upload speed) simply allows files to transfer fast enough that the error almost never occurs before the file is done. I do think I have gotten the error once or twice since upgrading my internet on huge (100MB) files, but trying again, they completed without a problem.

Sorry I don't have a full solution, but I hope this helps.

[goldcakes]

That does help. Thank you.

[babakj]

I am getting this problem copying files over a home network from one Win10 machine to another. Nothing to do with speed of the LAN.

4:52:02 PM Error Cannot copy file
"Z:\me\frq\Work\CLC\Fog\sp800-191-draft_BJ.pdf" to
"C:\me\frq\Work\CLC\Fog\sp800-191-draft_BJ.631c.ffs_tmp".
Error Code 5: Access is denied. [CopyFileEx]

[Zenju]

I am getting this problem copying files over a home network from one Win10 machine to another. Nothing to do with speed of the LAN.

4:52:02 PM Error Cannot copy file
"Z:\me\frq\Work\CLC\Fog\sp800-191-draft_BJ.pdf" to
"C:\me\frq\Work\CLC\Fog\sp800-191-draft_BJ.631c.ffs_tmp".
Error Code 5: Access is denied. [CopyFileEx]

"Error Code 5" ist NOT the same as "Error Code 64"

[xCSxXenon]

I have got rid of the problem by enabling SMB 1.0 in windows features. https://thegeekpage.com/the-specified-network-name-is-no-longer-available/

That is not the correct solution for the original issue