Skip to main content

DW Spectrum - Disabling TLS 1.1 on Server

Updated

Switching from TLS 1.1 to TLS 1.2

-----------------------------------

Affected Roles: Administrator, Power Users

Related DW Software: DW Spectrum Professional

Last Edit: April 29, 2026

-----------------------------------

 

Transport Layer Security Changes

As of July 28, 2020, support was discontinued for devices that utilize SSL/TLS 1.1 and earlier protocol versions. TLS versions 1.0 and 1.1 are out-of-date Transport Layer Security protocols that do not support modern cryptographic algorithms.

Most encrypted Internet traffic is now sent with TLS 1.2 & 1.3 for the increased security against vulnerabilities that may be exploited by attackers with older protocols. As so, older machines may need to have TLS 1.1 disabled in the DW Spectrum Server program.

This article will outline how to disable TLS 1.1 on a DW Spectrum Server machine using Windows or Ubuntu Linux.

 

**NOTE: Disabling SSL/TLS 1.1 will cause an inability to connect with DW Cloud if your system has ARM-based devices running DW Spectrum v3.1 or older, including:

  • Raspberry Pi
  • DW Edge (CaaS Series)
  • Any other compatible ARM-based device

 

Disabling TLS 1.1 on a Server

Using Windows OS

To disable TLS 1.1 on a Windows machine:

  1. Open the Registry Editor application and navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Digital Watchdog\Digital Watchdog Media Server

 

  1. To add a new String Value, right-click in the registry and select “New” from the context menu.

    Select “String Value” and name the String value as “allowedSsLVersions”.

 

  1. To edit the string, double-click on allowedSslVersions and enter “TLSv1.2” into the Value data box.

 

  1. Click the OK button to close the Edit String window.

    Close the Registry Editor and restart the DW Spectrum Media Server service or reboot the machine.

 

Using Ubuntu Linux

To disable TLS 1.1 on a Linux machine:

  1. Open the Terminal application and use the following command to switch to the root shell of Ubuntu:
sudo su

 

  1. When prompted, enter the Administrator password for the desktop. As a standard security feature, the text will not display as you type.

 

  1. Navigate to the configuration directory with the command:
cd /opt/digitalwatchdog/mediaserver/etc/

 

  1. Open the configuration file with the following command:
nano mediaserver.conf

 

  1. Add the following line to the file (at the end):
allowedSslVersions=tls1_2

 

  1. Save the file by pressing the CTRL + O keys, then press Enter to confirm.
  2. Exit the editor by pressing the CTRL + X keys.
  3. Restart the DW Spectrum Media Server service or reboot the machine to apply the changes.

 

 

______________________________________________________________________________

For More Information or Technical Support

DW Technical Support: https://www.digital-watchdog.com/contact-tech-support/

DW Sales: sales@digital-watchdog.com | www.digital-watchdog.com

Copyright © All rights reserved. Specifications and pricing subject to change without notice.

Related to

Related articles