Unable to browse list of SMB shares from Win10 after 20.04.5 LTS update

[ianmanning]

I was prompted to upgrade my Lubuntu machine this morning, and am now on 20.04.5 LTS. Previously I was able to browse a list of shares on this machine from a Windows 10 machine on the same subnet, by typing the IP address into File Explorer. Following the update, I get an error if I do this - I need to enter a share name. If I enter the IP address only it fails to connect.
Any idea how/if I can return to being able to browse the list of shares on my Lubuntu machine?

[TheFu]

Just a guess, but do you have avahi installed?

[ianmanning]

Just a guess, but do you have avahi installed?

I have no idea what avahi is, so I guess not

[him610]

I have no idea what avahi is, so I guess not

apt show avahi

[ianmanning]

apt show avahi

OK I can confirm that avahi is not installed.

[Morbius1]

avahi is installed by default in Lubuntu 20. The apt package is not called that however:

apt show avahi-daemon

While you can access a Samba server via it's avahi host name from Win10 it's not made discoverable via avahi. You would need to specify the hostname.local and the share name just like you did with the ip address.

The problem I have with your post is this:

Any idea how/if I can return to being able to browse the list of shares on my Lubuntu machine?

Win10 and Lubuntu in their default states never could browse for a list of shares on a Linux samba server.

Only 2 ways to make it happen:

Ignore all the warnings about security and enable smb1 on both Win10 and Linux.

Install wsdd - which Lubuntu 20 doesn't have.

Also, based on the data you provided elsewhere none of the updates had anything to do with samba:
I

Install:
linux-headers-5.4.0-144-generic:amd64 (5.4.0-144.161, automatic),
linux-headers-5.4.0-144:amd64 (5.4.0-144.161, automatic),
linux-modules-extra-5.4.0-144-generic:amd64 (5.4.0-144.161, automatic),
linux-modules-5.4.0-144-generic:amd64 (5.4.0-144.161, automatic),
linux-image-5.4.0-144-generic:amd64 (5.4.0-144.161, automatic)
Upgrade:
linux-headers-generic:amd64 (5.4.0.139.137, 5.4.0.144.142),
linux-libc-dev:amd64 (5.4.0-139.156, 5.4.0-144.161),
linux-image-generic:amd64 (5.4.0.139.137, 5.4.0.144.142),
tcpdump:amd64 (4.9.3-4ubuntu0.1, 4.9.3-4ubuntu0.2),
ubuntu-advantage-tools:amd64 (27.13.5~20.04.1, 27.13.6~20.04.1),
linux-generic:amd64 (5.4.0.139.137, 5.4.0.144.142)
End-Date: 2023-03-10 10:52:13

[ianmanning]

Ah OK yes I see it now. I was definitely able to browse the list of shares on the Lubuntu machine before the update(from File Explorer on Win10) - I used to do it alot. So I guess I had SMB1 enabled.

So I should install wsdd?
"apt install wsdd" didn't find the package
???

[Morbius1]

There is no wsdd package in Lubuntu 20. It's there on Lubuntu 22.

[ianmanning]

There is no wsdd package in Lubuntu 20. It's there on Lubuntu 22.

Is there any other way that I can re-enable browsing of my list of SMB shares on 20.04?

[TheFu]

Is there any other way that I can re-enable browsing of my list of SMB shares on 20.04?

"any other way" ... means is it possible without regard to cost, skills, technical challenges. Do you really mean that?

I suspect you really mean "any other practical, free, way". After all, if you have $50K to spend to solve this problem, I bet someone would agree to that payment to create a solution. 50% pre-paid.