10.9.2 Mavericks and can no longer connect to our SMB file share on the network.

Does this mean Yosemite resolves the problem ? There were several posts here before which suggested that this was not the case. It would be good to know that the issue has been resolved. I simply don't dare to upgrade in order not to get into more troubles.

BTW, I resolved the SMB problem in my case, may be someone would be interested. My working environment consists of one MS Server 2008 R2 wich offers shares used by workstations in the local network. Actually the iMacs didn't need the shares, there are VMs, Parallels 10, that are using them. However, the iMacs were causing SMB2 traffic to the server which, as I believe originates from NETBIOSD and server mounts if someone was trying to access the shares from within the iMac. In this situation I had the whole network down for 5-15 min when the machines were powered on. Then everything settled down but the connection to the server was very unstable. There was a lot of SMB2 traffic, absolutely useless in my case, floating between the iMacs and the server.

What I have done on the iMacs was to disable the NETBIOSD by using this command in the terminal:

sudo launchctl unload -w /Library/LaunchAgents/com.apple.netbiosd.plist

I removed all server definitions in Finder > Go > Connect to server. Also created a nsmb.conf file in ~/Library/Preferences/ with the entry:

smb_neg=smb1_only

I made sure that all shared resources are checked off. Also checked the mounted file systems and unmounted those who were SMB driven. Having done that I checked the network traffick from the iMac and didn't register any SMB2 packets. The I ran the Parallels VMs and let the SMB flow between the MS Windows clients and the server which wouldn't cause a problem.

I guess this is not the typical working environment for all but wanted to share the results of my 2 weeks struggle with the Maverick - SMB problem.

Best !

Virnico, I cannot say Yosemite "resolves the problem" for everyone, but I can say it's much better in my house now. We do still have some hesitation connecting to both Windows & Mac shares on the network by the iMacs but nothing like the 5+ minute waits we had before using Maverick, even with the latest Maverick update. On a side note, we never experienced any issues connecting to Mac shares via Windows 7 workstations, only with the Macs. I'm not sure if Mac & Windows will ever be totally fluid in network negotiating but I remain hopeful!

Sorry I can't give a definitive answer.

Cheers!

In our environment which consists of 260 laptops/desktops with 30 being macs (thank god its not more), no mac servers, only windows/linux/unix. the switch to 10.9.5 was welcomed, however it is still not as fast as 10.8.5. On top of all things, i've been telling our users to turn off wireless while they work on the LAN as this does increase speed and stability. Its still not perfect and I cannot say for sure that Yosemite is actually any better, we will be testing this on a small amount of laptops to make sure (not that we will deploy Yosemite before 10.10.4)

Hopefully that will enlighten a few IT professionals that are looking for an insight from someone having these issues within a company.

Fred B.

I can confirm Yosemite fixes the SMB problem, at least for the ~15 Mac users in our company (including myself), who connect to Windows shares of various flavors (Windows Server 2008 R2, and Windows Server 2012 R2). No more SMB1 workarounds...it has been great.

At home I just swapped out our old wireless router with an Apple AirPort Extreme 802.11ac model, and can now transfer files from my Windows 8.1 PC wirelessly to my MBP at ~18MB/s (megaBYTES/second). I'm a happy camper with Yosemite.

Well, I might give it a try with some test machine. Would be intersting to know whether the issue still persists. Anyway, in the working environment described in my previous post I see much less unnecessary traffic and the network performance increased enormously.

Thanks for the feedback, PleasantSpectrum and itsmayes.

Cheers.

In my case, things happen with all the files (my shared folders are constituted by small files like "pdf", "doc", etc.)

https://discussions.apple.com/thread/5967462

My SMB shares are accessible just as fine as before with 10.9.2

Did you try to connect with IP address ?

Yes I always connect through ip

i work at multiple sites and this is a BIG problem for me

As i said, it's working fine for me so im not sure we can assume its an update to 10.9.2 related issue.

I have had apple from 10.6 & never had this issue

joekmaclinux has it so YES after the update the issue happened

If you arent affected your lucky but FROM 10.9.2 MY SMB IS STUFFED

Have the same problem after upgrade to 10.9.2 :-(((((((

Can i downgrade to 10.9.1?

Same happening here... upgrade to 10.9.2 makes the cifs:// and / or SMB:// shares disconnect!

Within a multinational NOT acceptable!

please supply either a downgrade to 10.9.1 or a solution!!

Count me in on this one. Any suggestion for a temporary fix?

I'm now using SMB2 with less problems. But I had to do that what I wrote. So SMB2 is currently working but the update had really breaked something.

I have come up with a work around which helps

Instead of using smb://192.168.1.5/example

try cifs://192.168.1.5/example

When i use smb my finder can crash

When i use cifs it works perfect

Hope this helps