Calendar “Create Talk meeting” button missing for all users after temporary network disruption (Talk/conferencing provider not loaded)

[alphadawn]

Steps to reproduce

1.when the server is runnin, temporarily block UDP port 3478.
2.Open Calendar and create an event with an attendee – the “Create Talk room” button disappears.
3.Re‑open the port; the button stays missing for all users.

Expected behavior

After restoring network conditions, the button should reappear and work as before.

Actual behavior

The button is still invisable after opening the port back.

Calendar app version

Calendar: 6.2.3 , Talk: 23.0.4

CalDAV-clients used

DAVx5

Browser

all

Client operating system

win 11

Server operating system

debian 13

Web server

None

Database engine version

None

PHP engine version

None

Nextcloud version

latest

Updated from an older installed version or fresh install

Fresh install

List of activated apps

Nextcloud configuration

name: nextcloud-aio
services:
  nextcloud-aio-mastercontainer:
    image: ghcr.io/nextcloud-releases/all-in-one:latest
    init: true
    restart: always
    container_name: nextcloud-aio-mastercontainer
    volumes:
      - nextcloud_aio_mastercontainer:/mnt/docker-aio-config
      - /var/run/docker.sock:/var/run/docker.sock:ro
    network_mode: bridge
    ports:
     - "8080:8080"
     # - "8443:8443"
     # - "80:80"
    environment:
      APACHE_PORT: 11000
      #APACHE_IP_BINDING: 0.0.0.0
      APACHE_IP_BINDING: 127.0.0.1
      SKIP_DOMAIN_VALIDATION: false
      NEXTCLOUD_MEMORY_LIMIT: 2048M
      TALK_PORT: 3478

volumes:
  nextcloud_aio_mastercontainer:
    name: nextcloud_aio_mastercontainer

Web server error log

Log file

Browser log

Additional info

Current state

• The button is missing for every user, despite the port being reopened.

• Browser console originally showed: [Vue error]: TypeError: can't access property "scheduleDefaultCalendarUrl", this.currentUserPrincipal is undefined

• PROPFIND to /remote.php/dav/ returns a valid for the tested user, but calendar-home-set consistently yields 404 Not Found (even though the user’s calendar collection is reachable at /remote.php/dav/calendars//).

• The talkEnabled app config is forced to yes globally and per user.

• Disabling/enabling both Calendar and Talk apps, flushing Redis (FLUSHALL), running occ maintenance:repair, restarting the Nextcloud container, and clearing all browser-side caches have not restored the button.

Hypothesis

The transient UDP block caused a failure in Talk’s conferencing provider registration or capability advertisement that was never recovered. This leaves Calendar’s frontend unable to load the Talk conferencing provider for any user, preventing the button from rendering despite correct individual DAV principals. The global nature points to a server‑side capability/cache issue rather than a per‑user problem.

[RambokDev]

Same here, any workarround ?

[alphadawn]

sadly i still havent found any workaround and im kinda stuck. i dont want to do a fresh install again with the ports open from the beginning so im just hoping for an update that fixes this bug

[alphadawn]

idk if this would help, but this seems to have brought back the button for me:

1. downgrade the calendar app to 6.2.2
2. open the udp and tcp port at 3478 and open the 80 tcp and 8080 tcp ports
3. run this command in the server installation sudo docker exec nextcloud-aio-nextcloud php occ config:app:set calendar talkEnabled --value=yes "to force the flag to be true for all users, since it was automatically turned to "no" when the 3478 udp port was first detected as closed"
4. in the aio page, create a backup
5. startup your containers after the backup is done
6. check the calendar, should be fixed.

[Hippo0o]

The issue is most likely duplicate of #8236 and related to this pr: ffa492b -> isTalkEnabledForUser()

The current logic requires you to have at least 1 group in both fields: Settings -> Talk -> Limit to groups -> Limit using Talk / Limit creating a public and group conversation intersecting with the current user's group.

[bentuna]

The issue is most likely duplicate of #8236 and related to this pr: ffa492b -> isTalkEnabledForUser()

The current logic requires you to have at least 1 group in both fields: Settings -> Talk -> Limit to groups -> Limit using Talk / Limit creating a public and group conversation intersecting with the current user's group.

This workaround solves it for appointment booking but not for creating events in the calendar.

[SebastianKrupinski]

Hi All,

We are looking in to the issues, there are some fixes being released this week, that should address some of these.

[yharroch]

Same on my side with Nextcloud 33.0.3 and Calendar 6.2.3