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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 the TeamConnect Bar (TC Bar) and preparing it 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 TC Bars.
TC Bar requires an external time source

Knowledge Base
Central hub for information, resources, and guides with further content on the product and/or service.
- FAQ
  The most frequent questions and answers summarized in a chapter.
- Cloud connectivity guide
  This document provides AV /IT professionals with step-by-step guidance on enabling cloud connectivity for the TeamConnect Bar (TC Bar) and preparing it for integration with Sennheiser DeviceHub, Sennheiser's cloud-based device management platform.
  - Preparing the TC Bar for cloud connectivity
    To enable cloud connectivity for TC Bar devices, ensure the latest firmware is installed and configure the necessary network settings and outbound ports as specified.
  - Known Issues
    This document outlines known issues and pitfalls related to firmware, time synchronization, third-party access, and provides supportive links for troubleshooting TC Bars.
- Security white paper
  This document aims to provide information about the security and data privacy of DeviceHub to facilitate the onboarding in our customers’ IT environments.

TC Bar requires an external time source

Condition

The TC Bar requires an external time source after booting.

Cause

The TC Bar 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.

After a factory reset, the device defaults to Manual NTP mode and automatically preloads two predefined time servers.

Mode switching:

Manual to Auto
- Server fields are cleared and disabled (Auto uses network‑provided time).
Auto to Manual
- Default servers are reinserted and fields become editable.

Manual changes:

Any user-entered servers remain active in Manual mode unless switched to Auto, which clears them.

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.