Mounting multichannel from Linux to Samba server on localhost (even current master Version 4.22.0pre1-GIT-8edb1fd13c1 but I also see it failing on Samba 4.21 - but it works fine on Samba 4.19.5 and has worked for years) I see many repeated: [ 1936.825332] CIFS: Status code returned 0xc000000d STATUS_INVALID_PARAMETER [ 1936.825344] CIFS: VFS: \\ Send error in SessSetup = -22 [ 1936.825353] CIFS: VFS: failed to open extra channel on iface:0000:0000:0000:0000:0000:0000:0000:0001 rc=-22 trying to setup additional channels. Any ideas what changed? -- Thanks, Steve