Any reports of IOS 18.79/Files failure to connect to samba? (all prior IOS versions worked)

Samba folks,

   One thing I use samba for (in standalone mode) is to allow smb 
connection from IOS/Files app to hosts on the local network. This has 
worked like clockwork for the past several years.

   Recently Apple release IOS 18.79 to address a myriad of AI discovered 
exploits over the past several weeks. Following the update I can no 
longer connect to samba from the iPhone.

   I have opened a discussion with Apple as well:

https://discussions.apple.com/thread/256299931

   The basic config to allow users to reach their homes share on each PC is:

$  testparm
Load smb config files from /etc/samba/smb.conf
Loaded services file OK.
Weak crypto is allowed by GnuTLS (e.g. NTLM as a compatibility fallback)

Server role: ROLE_STANDALONE

Press enter to see a dump of your service definitions

# Global parameters
[global]
         disable netbios = Yes
         dns proxy = No
         map to guest = Bad User
         printcap name = cups
         security = USER
         server string = %h Samba %v
         idmap config * : backend = tdb
         cups options = raw
         hosts allow = 192.168.6.
         vfs objects = fruit streams_xattr


[homes]
         browseable = No
         comment = Home Directories
         read only = No

   Nothing has changed here. I have tested against 4.23.6 (openSUSE 
Tumbleweed) and 4.24.2 (Archlinux), there is no difference in behavior.

   I don't pay much attention to the log when things are working, and 
from what I can tell, the logs show the same information they always 
have (4.23.6 and 4.24.2 show the same other than version no., likely not 
helpful, but included for completeness):

log.samba-dcerpcd:  (4/23 connection OK, 5/19 connection failed)

<snip>
[2026/04/23 01:45:06.222643,  0] 
../../source3/rpc_server/rpc_host.c:2889(main)
   samba-dcerpcd version 4.23.6-git.466.1a6b75cb208SUSE-oS16.9-x86_64 
started.
   Copyright Andrew Tridgell and the Samba Team 1992-2025
[2026/05/19 02:46:16.636259,  0] 
../../source3/rpc_server/rpc_host.c:2889(main)
   samba-dcerpcd version 4.23.6-git.466.1a6b75cb208SUSE-oS16.9-x86_64 
started.
   Copyright Andrew Tridgell and the Samba Team 1992-2025
<snip>


log.rpcd_classic:

<snip>
[2026/04/23 01:45:06.379795,  0] 
../../source3/rpc_server/rpc_worker.c:1148(rpc_worker_main)
   rpcd_classic version 4.23.6-git.466.1a6b75cb208SUSE-oS16.9-x86_64 
started.
   Copyright Andrew Tridgell and the Samba Team 1992-2025
[2026/05/19 02:46:16.785453,  0] 
../../source3/rpc_server/rpc_worker.c:1148(rpc_worker_main)
   rpcd_classic version 4.23.6-git.466.1a6b75cb208SUSE-oS16.9-x86_64 
started.
   Copyright Andrew Tridgell and the Samba Team 1992-2025
<snip>


log.rpcd_winreg:

<snip>
[2026/04/23 01:45:06.444744,  0] 
../../source3/rpc_server/rpc_worker.c:1148(rpc_worker_main)
   rpcd_winreg version 4.23.6-git.466.1a6b75cb208SUSE-oS16.9-x86_64 started.
   Copyright Andrew Tridgell and the Samba Team 1992-2025
[2026/05/19 02:46:16.851342,  0] 
../../source3/rpc_server/rpc_worker.c:1148(rpc_worker_main)
   rpcd_winreg version 4.23.6-git.466.1a6b75cb208SUSE-oS16.9-x86_64 started.
   Copyright Andrew Tridgell and the Samba Team 1992-2025
<snip>

   What it does show is the iPhone is connecting with samba host, but 
it's just not doing whatever it used to do to establish a connection.

   Let me know what else I can provide, and I'm happy to do it. You will 
need to include a link to show me how to set lever-10 debug again if 
that is needed. (samba just works for me, so it's been years since I had 
to debug). My guess is this is an Apple created issue where their 
attempts to correct a bug has had side-effects on the smb connection, 
but given it involves a connection to samba, I also wanted to inquire 
here to see if this has been confirmed.

   Thanks.

-- 
David C. Rankin, J.D.,P.E.


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