Cannot access a Samba file share anymore due to "Failed to retrieve file list from server"

[Jussi Lind]

This is a regression bug as I have no problems with another laptop running Ubuntu 18.04 LTS.

Trying to access Samba file share on my Synology Diskstation (smb://diskstation.local) gives me just "Failed to retrieve file list from server: Software caused connection abort". See the attached screenshot of the problem.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: nautilus 1:3.36.3-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.6
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 25 20:34:44 2020
InstallationDate: Installed on 2016-09-13 (1442 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: nautilus
UpgradeStatus: Upgraded to focal on 2020-05-19 (98 days ago)
usr_lib_nautilus:

[Morbius1 (morbius1)]

More of an FYI but you will get a "Software caused connection abort" error anytime Nautilus tries to connect to a SMB / Samba server that only uses SMB1.

There is no SMB1 ( NT1 ) on the client ( or server ) side in Ubuntu20. There is in Ubuntu 18.

SO either enable SMB2/SMB3 on the diskstation or enable SMB1 on the client side of Ubuntu20 by editing smb.conf and adding in the [global] section:

client min protocol = NT1

Then reboot.

[Jussi Lind (jussi-lind)]

Thanks, I probably wouldn't have figured this out!

[Sebastien Bacher (seb128)]

That's not a nautilus bug, also it's discussed there https://askubuntu.com/questions/1229929/cant-acces-nas-anymore-after-upgrading-to-20-04 and mentioned on https://wiki.ubuntu.com/FocalFossa/ReleaseNotes#Samba_4.11