[Bug]: occ files_external:notify gives Icewind\SMB\Exception\ConnectionRefusedException on 33

⚠️ This issue respects the following points: ⚠️

This is a bug, not a question or a configuration/webserver/proxy issue.
This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
I agree to follow Nextcloud's Code of Conduct.

Bug description

For multiple major versions I've ran

occ files_external:notify 1

as a separate process in my nextcloud docker stack in order to enable SMB notifications for the External Files app, and it's seemingly worked without issue. Now, after upgrading to 33, trying to run the above command results in

In Connection.php line 56:

[Icewind\SMB\Exception\ConnectionRefusedException]

The same happens even if I try to explicitly provide the username/password to the command (and that was never needed before anyway). The server itself is still able to connect to the share and I'm able to read/write files with my user account, so it seems only that this command (or the occ tool at large) is affected.

I even cloned out a snapshot of my install when it was still on version 32 to confirm the command executes fine there and it was only after upgrading to 33.

Steps to reproduce

Try to run:

occ files_external:notify 1

as a separate process.

Expected behavior

Share is observed for changes like bfore.

Nextcloud Server version

33

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.4

Web server

Nginx

Database engine version

PostgreSQL

Is this bug present after an update or on a fresh install?

Upgraded to a MAJOR version (ex. 31 to 32)

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

Default user-backend (database)
LDAP/ Active Directory
SSO - SAML
Other

Configuration report

{
    "system": {
        "activity_expire_days": "90",
        "allow_user_to_change_display_name": false,
        "apps_paths": [
            {
                "path": "\/config\/www\/nextcloud\/apps",
                "url": "\/apps",
                "writable": true
            }
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "dbport": "5432",
        "dbtableprefix": "oc_",
        "dbtype": "pgsql",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "default_phone_region": "US",
        "filelocking.enabled": true,
        "installed": true,
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "jpeg_quality": "90",
        "log_type": "file",
        "log_type_audit": "file",
        "logdateformat": "d\/m\/Y H:i:s",
        "logfile": "\/config\/log\/nextcloud.log",
        "logfile_audit": "\/config\/log\/audit.log",
        "loglevel": "2",
        "logtimezone": "America\/New_York",
        "log_rotate_size": 26214400,
        "lost_password_link": "disabled",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_sendmailmode": "smtp",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "maintenance_window_start": 1,
        "maintenance": false,
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "oidc_login_attributes": {
            "id": "sub",
            "is_admin": "groups_nextcloudAdmin",
            "mail": "email",
            "name": "name"
        },
        "oidc_login_auto_redirect": true,
        "oidc_login_button_text": "Log in with Authentik",
        "oidc_login_client_id": "lmWduLl0rttR005louOOU3AIGTBeJN4wtYPM3qeU",
        "oidc_login_client_secret": "R26bA6GG90ktW3lKS8cDRETEwCGkgO0BKVFR1FnLyii28TpQ31loCOpKAzU7QRnd",
        "oidc_login_default_group": "authentik",
        "oidc_login_disable_registration": false,
        "oidc_login_end_session_redirect": true,
        "oidc_login_logout_url": "https:\/\/auth.mydomain.com\/application\/o\/nextcloud\/end-session\/",
        "oidc_login_provider_url": "https:\/\/auth.mydomain.com\/application\/o\/nextcloud\/",
        "oidc_login_scope": "openid profile email",
        "oidc_login_webdav_enabled": true,
        "overwrite.cli.url": "https:\/\/cloud.mydomain.com",
        "overwritehost": "cloud.mydomain.com",
        "overwriteprotocol": "https",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "secret": "***REMOVED SENSITIVE VALUE***",
        "serverid": 0,
        "share_folder": "Shared",
        "trashbin_retention_obligation": "auto",
        "trusted_domains": [
            "127.0.0.1",
            "localhost",
            "nextcloud",
            "nextcloud-*",
            "cloud.mydomain.com",
            "192.168.1.30"
        ],
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "upgrade.disable-web": true,
        "version": "33.0.0.16",
        "versions_retention_obligation": "auto, 30",
        "files.chunked_upload.max_size": 99614720,
        "app_install_overwrite": [
            "oidc_login"
        ],
        "twofactor_enforced": "true",
        "twofactor_enforced_groups": [],
        "twofactor_enforced_excluded_groups": []
    }
}

List of activated Apps

Enabled:
  - activity: 6.0.0-dev.0
  - bruteforcesettings: 6.0.0-dev.0
  - circles: 33.0.0
  - cloud_federation_api: 1.17.0
  - comments: 1.23.0
  - contactsinteraction: 1.14.1
  - dashboard: 7.13.0
  - dav: 1.36.0
  - federatedfilesharing: 1.23.0
  - federation: 1.23.0
  - files: 2.5.0
  - files_downloadlimit: 5.1.0-dev.0
  - files_external: 1.25.1
  - files_pdfviewer: 6.0.0-dev.0
  - files_reminders: 1.6.0
  - files_sharing: 1.25.2
  - files_trashbin: 1.23.0
  - files_versions: 1.26.0
  - firstrunwizard: 6.0.0-dev.0
  - logreader: 6.0.0
  - lookup_server_connector: 1.21.0
  - nextcloud_announcements: 5.0.0
  - notifications: 6.0.0
  - notify_push: 1.3.0
  - oauth2: 1.21.0
  - oidc_login: 3.3.0
  - password_policy: 5.0.0-dev.0
  - photos: 6.0.0-dev.0
  - previewgenerator: 5.12.1
  - privacy: 5.0.0-dev.0
  - profile: 1.2.0
  - provisioning_api: 1.23.0
  - recommendations: 6.0.0-dev.0
  - related_resources: 4.0.0-dev.0
  - serverinfo: 5.0.0-dev.0
  - settings: 1.16.0
  - sharebymail: 1.23.0
  - support: 5.0.0
  - survey_client: 5.0.0-dev.0
  - systemtags: 1.23.0
  - text: 7.0.0-dev.3
  - theming: 2.8.0
  - twofactor_backupcodes: 1.22.0
  - twofactor_totp: 15.0.0-dev.0
  - updatenotification: 1.23.0
  - user_status: 1.13.0
  - viewer: 6.0.0-dev.0
  - weather_status: 1.13.0
  - webhook_listeners: 1.5.0
  - workflowengine: 2.15.0
Disabled:
  - admin_audit: 1.23.0
  - app_api: 33.0.0 (installed 33.0.0)
  - encryption: 2.21.0
  - suspicious_login: 11.0.0-dev.0
  - twofactor_nextcloud_notification: 7.0.0
  - user_ldap: 1.24.0

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

No log entries are produced for this

Additional info

Every time the command is run, the machine hosting the SMB share shows the connection attempt and lists it as "successful" in its audit logs.

@sorbaugh

cc @sorbaugh / @icewind1991

Can you try rolling back the icewind/smb library to 3.7.0 (the version that was included in NC32) and see if that resolve the issue for you.

I think editing "3rdparty/composer.json" and then running composer update should do it, though I'm not a 100% if that will work if NC is installed from the release packages.

Alternatively, if it's easier you can also try updating the NC32 snapshot to icewind/smb 3.8.1 and see if that has the same issue as 33 has for you.

I imagine testing in both directions is not necessary, though I'm happy to if desired.

Repeating what I did, to ensure the test was proper, I:

Destroyed my normal nextcloud instance and deployed the clone that is still on 32.0.6.1
Confirmed that occ files_external:notify 1 ran without error
Edited /app/www/public/3rdparty/composer.json
- Changed config.platform.php from 8.1.0 to 8.2.0
- Changed require.icewind/smb from ^3.7.0 to 3.8.1
Ran composer update and confirmed package reinstall when .git was not found in the smb package dir
Restarted the container, confirming the updated library remained
Ran occ files_external:notify 1

After doing this I can confirm that updating the library from 3.7.x to 3.8.1 on a NC32 install does reproduce the same error as on NC33.

Following - I am experiencing this as well on 33

Just updated my nextcloud instance and ran into the problem as well. Downgrading icewind/smb does seem to fix the issue.

@icewind1991

@icewind1991
You may have gotten this far already, but I took the time to bisect this for you. Seems the breakage is from 4a93467905985863d2ed765787d63d2677dabbcf

fix(files_external/SMB): Use 'null' explicitly for no workgroup

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[Bug]: occ files_external:notify gives Icewind\SMB\Exception\ConnectionRefusedException on 33 #58445

⚠️ This issue respects the following points: ⚠️

Bug description

Steps to reproduce

Expected behavior

Nextcloud Server version

Operating system

PHP engine version

Web server

Database engine version

Is this bug present after an update or on a fresh install?

Are you using the Nextcloud Server Encryption module?

What user-backends are you using?

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

Additional info

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

[Bug]: occ files_external:notify gives Icewind\SMB\Exception\ConnectionRefusedException on 33 #58445

Description

⚠️ This issue respects the following points: ⚠️

Bug description

Steps to reproduce

Expected behavior

Nextcloud Server version

Operating system

PHP engine version

Web server

Database engine version

Is this bug present after an update or on a fresh install?

Are you using the Nextcloud Server Encryption module?

What user-backends are you using?

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

Additional info

Activity

susnux commented on Feb 21, 2026

icewind1991 commented on Feb 23, 2026

oblivioncth commented on Feb 24, 2026

nmbgeek commented on Apr 3, 2026

krzys-h commented on Apr 5, 2026

oblivioncth commented on Jun 26, 2026

github-actions commented on Nov 4, 2026

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

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