Forum Discussion
kurgan
Mar 22, 2019Copper Contributor
W10-1903 UNC path failing 0x80070043
I can no longer access network shares through unc paths \\server\share I get the 0x80070043 "Network name cannot be found" error. I suspect that this is related to the removal of Homegroups? but ...
- Jun 13, 2019
Hi everyone. We got access to the Dell KB and see the issue in Dell/EMCs 'Unity' CIFS implementation.
From the DELL EMC KB attached to thread (below), the Unity SMB Server implementation is failing on the "SMB2_NETNAME_CONTEXT" and "SMB2_COMPRESSION_CAPABILITIES" we added in 1903. These were changes designed to add some new capabilities to SMB; we make some variant of these at most OS releases. If an SMB/CIFS server doesn't recognize capabilities, it should ignore them, not fail. Otherwise Dell would have to update their SMB implementation every time we released a new SMB capability that didn't also include a protocol dialect revision (like "SMB 3.1.2"), forever and ever.
Error Messages in the Unity c4_safe_ktrace.log:
sade:SMB: 3:[nas_serverx] Unrecognized SMB2 negotiate context type 0003
sade:SMB: 3:[nas_serverx] Unrecognized SMB2 negotiate context type 0003SMB client sends the compression context before the netname context, so the server encounters the compression context first. The Unity server would probably encounter the same problem with the netname context. Instead of failing when their SMB Server version doesn't support more advanced capabilities, it should be ignoring those capabilities. This is what Windows and other 3rd party SMB products do.
kurgan thanks for opening this techcommunity item, I'm sorry I didn't see it until now.
Ned Pyle | Principal Program Manager, MS | @nerdpyle on twitter
DarrenMiller
Jul 05, 2019Copper Contributor
adecroce I heard back from Dell today - they told me a FluidFS fix should be out in early August.
- tomattheAug 30, 2019Copper Contributor
stevecookMOL 1903 is started to end up on machines here, and this is quickly becoming a rather large problem for us. I really don't want to disable v3 completely, but running out of options.
8/26/2019
Good morning,
No change yet in the current status for release. It is still in testing and does not have a firm ETA.
Regards,
Chad
- stevecookMOLAug 30, 2019Copper Contributor
tomatthe Has there been an update on MR640 from DELL?
- tomattheAug 19, 2019Copper Contributor
Update as of 8/19/2019.
The current ETA for MR640 (and the SBM fix) has been changed from August to open. However, I anticipate it being release in the next few weeks. I’ll continue to check the status on this and send you an update every week or so.
- fangludi1Aug 13, 2019Copper Contributor
Anyone knows when Dell will release the new firmware update for FluidFS to fix this SMB issue ?