The problem turned out to be that Samba was stricter than Azure server in alignment - I changed it to 8 byte alignment for the new signing negotiate context and Samba did not error out (although ignored the context). Azure was ok either way. On Sat, Jun 26, 2021 at 11:48 AM Steve French <smfrench@xxxxxxxxx> wrote: > > I tried an experiment to Samba 4.13.3 and also to Azure sending the > new signing negotiate context during negprot. Azure ignored it as > expected, but Samba server rejected it with "STATUS_INVALID_PARAMETER" > (it wasn't obvious at first glance what was invalid about it but > perhaps Samba wants different rounding than Azure). > > Has anyone tested the signing negotiate context (e.g. newer Windows) > to Samba server? > > -- > Thanks, > > Steve -- Thanks, Steve