samba - Sep 2018 - 4.6.16 on CentOS 6: network browsing doesn't work

I've got a Samba DC installation that doesn't show a browse list to any 
clients on the network, which means point-and-click navigation of the 
network doesn't work.  File sharing works just fine, as does joining 
computers to the domain, login authentication, etc.  It's just the ability 
to browse lists of other machines on the network that doesn't work: 
clients see nothing.

This serverfault question [1] purports to shed some light on the issue, 
and comparing output with another S4 site I have (4.0.7 (sorry) on CentOS 
6) does give slightly odd results:

badsite% /usr/local/samba/bin/smbtree -N
(no output)

othersite% /usr/local/samba/bin/smbtree -N
WIND
         \\WIN7-7
         \\WIN7-5
         \\WIN7-2
         \\WIN7-1

the manpage on smbtree does suggest that it's related to "Network 
Neighbourhood"-style lists of machines, so I'm hoping this line of 
enquiry isn't insane.  But I don't know where to go next in trying to
work
out why I see no other machines.

Any pointers would be most gratefully received.


-- 

   Tom Yates  -  http://www.teaparty.net



[1] https://serverfault.com/q/160396/55514

On Tue, 18 Sep 2018 12:22:02 +0100 (BST)
Tom Yates via samba <samba at lists.samba.org> wrote:
> I've got a Samba DC installation that doesn't show a browse list to
> any clients on the network, which means point-and-click navigation of
> the network doesn't work.  File sharing works just fine, as does
> joining computers to the domain, login authentication, etc.  It's
> just the ability to browse lists of other machines on the network
> that doesn't work: clients see nothing.
You better get used to this, you need SMB1 for browsing and it is not
the default any more. Microsoft has turned it off in win10 and whilst
you can turn it back on, if it isn't used for some time, it gets turned
off again.

Rowland

> -----Original Message-----
> From: samba [mailto:samba-bounces at lists.samba.org] On Behalf Of Rowland
> Penny via samba
> Sent: 18 September 2018 13:09
> To: samba at lists.samba.org
> Subject: Re: [Samba] 4.6.16 on CentOS 6: network browsing doesn't work
> 
> On Tue, 18 Sep 2018 12:22:02 +0100 (BST)
> Tom Yates via samba <samba at lists.samba.org> wrote:
> 
> > I've got a Samba DC installation that doesn't show a browse
list to
> > any clients on the network, which means point-and-click navigation of
> > the network doesn't work.  File sharing works just fine, as does
> > joining computers to the domain, login authentication, etc.  It's
> > just the ability to browse lists of other machines on the network
> > that doesn't work: clients see nothing.
> 
> You better get used to this, you need SMB1 for browsing and it is not
> the default any more. Microsoft has turned it off in win10 and whilst
> you can turn it back on, if it isn't used for some time, it gets turned
> off again.
> 
> Rowland
> 
Windows 10 (and earlier versions) now use the Function Discovery Provider Host
and Function Discovery Resource Publication services for network browsing which
uses the WS-DISCOVERY protocol.  Unfortunately this doesn't work with samba.
Are there any plans for samba to support the WS-DISCOVERY protocol for network
browsing now that SMB1 is effectively not available any more?

Roy