Both, you have to disable SMB2 and now SMB3 to get reliability.

>Running that code, or is that just what you've seen in regular production?
>
>>Hook 10 workstations up to a 2008 or 2011 server and load it up, you will get the error.
>>
>>>I tried running that code between 2 Win7 computers, couldn't get the error to come up. Stock network configuration, SMB2 not disabled on either machine.
>>>
>>>That was a while back, haven't had time to really look into it deeply.
>>>
>>>>See Message ID 1430067
>>>>>>Hi,
>>>>>>It does lessen the corruption, but it doesn't totally stop it.
>>>>>>
>>>>>>>Just an fyi - found this page on MS Support which explains the SMB2 corruption issue and provides a fix for it and a workaround option.
>>>>>>>
>>>>>>>http://support.microsoft.com/kb/2028965/en-us
>>>>>
>>>>>do you have reproducible code showing the error even after hotfix and workaround ?
>>>>>might make sense to add to individual testing at clients site...