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SMB sharing drops connection in Windows 7/Vista/XP

So interesting tidbit here. Apple Enterprise still hasn't gotten back to me with an answer on this one.

I have file sharing set up, a couple of different folders with some simple permissions. Nothing fancy. All shares work perfect under AFP and SMB on any Mac in the office. However, I have found on both Windows XP/Vista/7, large file transfers seem to drop the connection saying that either the file has changed or it was renamed or something along those lines, basically, it errors out and I can either skip the file or cancel the transfer. I've tested it on multiple machines with all same results. Here's a kicker, I even clean installed Windows 7 on two machines (so I know there are no software/hardware issues or malware) and it will exhibits the same behavior.

Any thoughts? I've done the exact same transfer either via Gigabit Ethernet and WiFi on the Mac using both protocols with no issues. I have a simple network:

Cisco Gb Ethernet Router
Cisco Gb Ethernet Switch (all traffic, including the server and all clients go through this switch, it is an unmanaged switch)
Linksys A/B/G/N WAP
Mac mini running 10.8.2 and 2.2.1 server (has all correct DNS and certificate settings)

The only thing I can think of is perhaps an issue with the PCs (which are 10/100) and the Gb Ethernet? Everything for the server appears to be functioning just fine?

Mac mini (Mid 2011), OS X Server

Posted on Feb 6, 2013 6:21 AM

Best reply

Doc_Mo

Level 1

5 points

Posted on Feb 6, 2013 8:37 AM

Hi Bryan,

i think your problem transfering large files (in my case >1 GB) is the same issue we discuss here:

https://discussions.apple.com/thread/4241958?start=15&tstart=0

If i transfer a file bigger than 1 GB from Windows (any version) to my mac SMB-Share at about 50-60% the copy stopps with an error.

Regards,

View in context

20 replies

Aug 9, 2013 9:56 AM in response to Charlesdem

I don't either but in order to better play nice with all platforms, from what I understand SMB will be the default file protocol used in both Mavericks and Mavericks Server.

http://reviews.cnet.com/8301-13727_7-57588593-263/os-x-mavericks-switches-to-smb 2-networking/

Aug 9, 2013 10:57 AM in response to Bryan Navarro

well that's great news indeed. Back to Dave 10 until then!

AJ 2010

Level 1

15 points

Oct 7, 2013 12:02 PM in response to Bryan Navarro

Is there any way to fix this on the Mountain Lion server end so that if you have tons of clients they can use SMB without needing to edit their registry file?

Oct 7, 2013 12:07 PM in response to AJ 2010

Not that I've been able to find. Here's to hoping that SMB2 in Mavericks solves it altogether.

Stupoty

Level 1

0 points

Apr 8, 2014 5:06 AM in response to Bryan Navarro

Is the SMB problems caused by a recent update? I have just noticed massive issues copying files from an osx file share to a windows machine (copying from the pc desktop).

For me it generaly happens when copying a large amount of data but not nesesaraly a single large file.

I have tried this in multiple places with multiple variations of osx and windows machines.

As a though if you need to put the timeout for some of the network chatter above a minute which is i believe the default then their must be a massive issue with the apple smb code?

I havnt been experiencing any issues getting files to the windows boxes with any other files servers, the only other problem i have had is with the file shares momentaraly dissapearing on the osx desktop then re-connecting.

Hope theirs a solution to this soon as networking is quite an important part of modern computer use.

SMB sharing drops connection in Windows 7/Vista/XP