DJL

That's a Router Solicitation, which is sent by a host when attempting to locate an IPv6 router - it will be sent by a workstation, printer etc.. The only way to remove these is to disable the IPv6 stack on your edge devices. If you aren't using IPv6 then you can disable Router Advertisements on your router (ie by disabling RADVD) without any problems. However, if you don't have IPv6 addresses assigned to any of the router interfaces it won't (shouldn't be) sending any RA's.

We're fully IPv6 here and have been since around 2010/11. It so much better than IPv4 and allows us to do cool things with offsite backup and internal IPsec encryption. Not having NAT is fabulous. The sooner IPv4 dies the better!

It is crazy. We're running 2008 R2 for one of our file servers now, but the other 2012 R2 seems to be ok. Our SQL servers running 2012 exhibit the same problems when we try and copy files off them using SMB

The problem still exists. We've even rebuilt our cluster and servers since, latest software, updates and drivers etc

Thanks, I've tried implementing the reg key and step 2 and 3 but the problem still persists for us.

Seb - thanks for that. Can you just confirm that step 1 was reverted? In which case the only change is putting the Server service in a Separate Container using Sc config lanmanserver type=own? Did you add the leasing registry key?

I just edited the msi (Cubase7_64bit.msi) using Orca and set the property IAgree to Yes. Then we use a startup script to install the software: IF NOT EXIST "C:\Program Files\Steinberg\Cubase 7\Cubase7.exe" start /wait msiexec /i "\\servername\Applications\Cubase 7\Cubase7_64bit.msi" /qn /lv c:\logs\cubase7.log We also did the same with all the VST effects and updates: IF NOT EXIST c:\Logs\Cubase7Updates.txt IF EXIST c:\Logs\Cubase7VST.txt IF EXIST "C:\Program Files\Steinberg\Cubase 7\Cubase7.exe" GOTO UPDATES GOTO:eof :UPDATES start /wait Msiexec -P "\\servername\Applications\Cubase 7\Updates\Cubase_7.0.5_64bit_Update.msp" /qn start /wait Msiexec -P "\\servername\Applications\Cubase 7\Updates\HALion_Sonic_SE_1.6.3_64bit_Update.msp" /qn ECHO Cubase VST Updates Installed > c:\Logs\Cubase7Updates.txt IF NOT EXIST c:\Logs\Cubase7VST.txt IF EXIST "C:\Program Files\Steinberg\Cubase 7\Cubase7.exe" GOTO VST GOTO:eof :VST start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\VSTAmp_Content_01.msi" /qn /lv c:\logs\CubaseVST1.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Steinberg_Midi_Loop_Library.msi" /qn /lv c:\logs\CubaseVST2.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Steinberg_Drum_Loop_Expansion_01.msi" /qn /lv c:\logs\CubaseVST3.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Reverence_Content_01.msi" /qn /lv c:\logs\CubaseVST4.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Retrologue_64bit.msi" /qn /lv c:\logs\CubaseVST5.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Padshop_64bit.msi" /qn /lv c:\logs\CubaseVST6.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\LoopMash_Content2.msi" /qn /lv c:\logs\CubaseVST7.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\LoopMash_Content.msi" /qn /lv c:\logs\CubaseVST8.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\HALionSonicSE_Content.msi" /qn /lv c:\logs\CubaseVST9.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\HALionSonicSE_64bit.msi" /qn /lv c:\logs\CubaseVST10.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Groove_Agent_ONE_Vintage_Beatboxes.msi" /qn /lv c:\logs\CubaseVST11.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Groove_Agent_ONE_Content.msi" /qn /lv c:\logs\CubaseVST12.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\Groove_Agent_ONE_Allen_Morgan_Signature_Drums.msi" /qn /lv c:\logs\CubaseVST13.log start /wait msiexec /i "\\servername\Applications\Cubase 7\VST Sound\EuconAdapter65_64bit.msi" /qn /lv c:\logs\CubaseVST14.log ECHO Cubase VST Plugins Installed > c:\Logs\Cubase7VST.txt We never managed to find away to install the eLicensor software for the dongles unattended - that's deployed in our standard image instead. In terms of profiles it just works - all users have user permissions and roaming profiles. ProTools on the other hand is a complete nightmare!

We have Sibelius 6, Sibelius 7, Cubase 7 and ProTools 11 all working our domain joined Windows 7 and Windows 8 computers. They all worked out of the box for us. The only pain was adjusting the MSI's and scripting for an unattended install.

Good luck with the upgrade - i'd recommend you create a BMR image just in case you want to go back to 2012! We didn't see the problem at all on 2012 but 2012 R2 has been falling over every 20 mins since the upgrade if left under full load.

We have no AV on our file servers at the moment. We built a new file server, clean install..just windows and we have the same problem with it. It definitely has nothing to do with 3rd party software on the server, or even other Microsoft products. We use System Center Endpoint Protection 2012 on our workstations

Problems resurfaced - so the registry key isn't a fix after all

Microsoft have suggested disabling SMB Leasing - it appears to have solved the problem for us. You need to add the following reg key: reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters /v DisableLeasing /t REG_DWORD /d 1 /f More info on leasing can be found here: What's New in SMB The following will be logged in the event log when you add the reg key: File leasing has been disabled for the SMB2 and SMB3 protocols. This reduces functionality and can decrease performance. Registry Key: HKLM\System\CurrentControlSet\Services\LanmanServer\Parameters Registry Value: DisableLeasing Default Value: 0 (or not present) Current Value: non-zero Guidance: You should expect this event when disabling SMB 3 Leasing. Microsoft does not recommend disabling SMB Leasing. Once disabled, traffic from client to server may increase since metadata and data may no longer be retrieved from a local cache.

Windows Server 2012 R2? Are all your Windows 7 machines running all the latest updates from WSUS?

Definitely looks like that's true for us. We're just trying to work out if there are any differences in updates etc between the 150 that seemed ok this morning and the 60 we enabled at 12:30 The other thing I've noticed is occasionally the powershell command Get-SmbConnection shows that Windows 8.1 is talking to 2012 R2 using SMB3 instead of SMB3.02 which is odd. I'm wondering if there is an issue with SMB dialect negotiation

For us the problem only appears to occur when Windows 8.1 machines access our 2012 R2 file servers. We set group policy to stop our Windows 8.1 clients from loading roaming profiles and this seemed to fix the problem - 700 ish Windows 7 machines were still loading roaming profiles quite happily. Until last night I could recreate the problem simply and reliably by getting a couple of Windows 8.1 machines to load a roaming profile from the server - as soon as they tried logging in the file server would stop responding to requests. This morning I couldn't reproduce the problem at all, so we allowed 150 ish Windows 8.1 computer to load profiles. All was fine until 12:30 when we allowed another 60 or so Windows 8.1 computers to load profiles and within 5 mins the server had died again.