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Knowledge base
Central hub for information, resources, and guides with further content on the product and/or service.
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.
Communication flows
Overview of the communication flows between Sennheiser devices and DeviceHub.

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.
- Troubleshooting
  This chapter provides a systematic approach for identifying and resolving issues that may occur during the operation in DeviceHub.
- 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.
- 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.
  - Security at Sennheiser
    Overview of Sennheiser's integrated security approach and the key measures used to ensure secure, standards-compliant products for customers.
  - Communication flows
    Overview of the communication flows between Sennheiser devices and DeviceHub.
  - Authentication & authorization
    User authentication, access control, and secure device enrollment in DeviceHub.
  - Data protection
    Sennheiser applies a comprehensive data protection strategy that ensures robust encryption controls for both data at rest and data in transit.
  - Data privacy
    Overview of how Sennheiser DeviceHub collects, stores, and protects private and non-private data in compliance with GDPR.
  - Security testing and vulnerability management
    DeviceHub undergoes continuous security testing and structured vulnerability management to help ensure robust protection against emerging threats.
  - Monitoring & incident response
    DeviceHub monitors security-related events and defines processes for efficient incident detection, analysis, and response.
  - Compliance
    DeviceHub compliance with security-related certifications and standards.
  - Additional resources
    Find more information, documentation, and support options related to Sennheiser DeviceHub.

Communication flows

Overview of the communication flows between Sennheiser devices and DeviceHub.

The connection to DeviceHub is disabled by default on the Sennheiser devices in order limit the attack surfaces of a device in a factory default state.

Below you can find relevant information for understanding the communication flows between devices and Sennheiser DeviceHub.

Sennheiser DeviceHub utilizes Microsoft Azure IoT Hub for connections established by the Sennheiser devices. The following network protocols and ports are required for the Sennheiser cloud connectivity over the device control network.

All device communication over HTTPS and MQTT is secured with TLS 1.2 or higher.


IPv4	Port	Protocol	Service / FQDN
Device Enrollment Service	443	HTTPS	api.cloud.sennheiser.com
Azure IoT Hub, EMEA (Europe, Middle East and Africa)	443	MQTT over WebSockets	iot-sennheiser-prod-emea.azure-devices.net
Azure IoT Hub, APAC (Asia and Pacific regions)	443	MQTT over WebSockets	iot-sennheiser-prod-apac.azure-devices.net
Azure IoT Hub, AMER (Americas)	443	MQTT over WebSockets	iot-sennheiser-prod-amer.azure-devices.net
Firmware Update Service	443	HTTPS	updates.sennheiser.com
Network Time Synchronization	123	NTP	Default: time.cloudflare.com, time.nist.gov
Domain Name Service	53	DNS	User configurable