Home
Knowledge base
Central hub for information, resources, and guides with further content on the product and/or service.
Cloud connectivity guide
This document provides AV /IT professionals with step-by-step guidance on enabling cloud connectivity for Sennheiser devices and preparing them for integration with Sennheiser DeviceHub, Sennheiser's cloud-based device management platform.
Known Issues
This document outlines known issues and pitfalls related to firmware, time synchronization, third-party access, and provides supportive links for troubleshooting devicehub/cloud-connectivity/product-info.html#cloud-product-info__supported-devices.
Device requires an external time source

Knowledge base
Central hub for information, resources, and guides with further content on the product and/or service.
- Cloud connectivity guide
  This document provides AV /IT professionals with step-by-step guidance on enabling cloud connectivity for Sennheiser devices and preparing them for integration with Sennheiser DeviceHub, Sennheiser's cloud-based device management platform.
  - Preparing the device for cloud connectivity
    To enable cloud connectivity for devicehub/cloud-connectivity/product-info.html#cloud-product-info__supported-devices, install the latest firmware and configure the required Network modes and Required outbound ports (DeviceHub).
  - Known Issues
    This document outlines known issues and pitfalls related to firmware, time synchronization, third-party access, and provides supportive links for troubleshooting devicehub/cloud-connectivity/product-info.html#cloud-product-info__supported-devices.
- Audio/video application guide
  This guide provides technical guidance for planning, configuring, and operating TeamConnect Bar systems in audio/video conferencing environments.
- Network guide
  This document is intended for system integrators and room planners and serves as a planning guide for the network integration of the TeamConnect Bar (TC Bar) in a room.
- Cybersecurity white paper
  This white paper aims to provide IT professionals with an in-depth understanding of the TC Bar, its components, and its security features.
- FAQ
  The most frequent questions and answers summarized in a chapter.

Device requires an external time source

Condition

The device requires an external time source after booting.

Cause

The device requires an external time source. Accurate system time is necessary for proper enrollment and communication with Sennheiser DeviceHub. For persistent time synchronization, use a valid NTP server.

The device supports three modes for NTP:

Preset (default) - a predefined set of time servers
Manual - a user-configured set of time servers
Auto - a set of time servers automatically configured via DHCP

Enrollment can be performed using the "Use browser time" option in the LUI. The devices does not store time persistently e.g. during a reboot. The system time is saved periodically and restored after reboot, significantly reducing time drift. However, if no valid NTP server or time source is available, the system time will still drift over time after multiple reboots. Larger deviations between system time and actual time may cause enrollment to fail. Therefore, it is important to ensure that a valid NTP server is always configured and reachable.