Device Detection database is not updated

  • The following error can occur in Sitecore XP log files during authentication on the CES Discovery service used to update the device detection database:

    WARN  Authentication on CES Discovery service failed.
    Exception: System.Net.WebException
    Message: The remote server returned an error: (403) Forbidden.
    Source: System
       at System.Net.HttpWebRequest.GetResponse()
       at Sitecore.CES.Client.WebClient.<>c__DisplayClass6_0.b__0()
       at Sitecore.CES.Client.WebClient.Execute[T](Func`1 action, String requestUri)
       at Sitecore.CES.Client.ResourceConnector`1.Request(String endpoint, Object[] parameters)
       at Sitecore.CES.Discovery.EndpointSource.GetEndpoint(String serviceName)
    ERROR Could not update device detection database
    Exception: System.ArgumentNullException
    Message: Null ids are not allowed.
    Parameter name: endpointUri
    Source: Sitecore.Kernel
       at Sitecore.Diagnostics.Assert.ArgumentNotNullOrEmpty(String argument, String argumentName)
       at Sitecore.CES.Client.WebClient.DownloadBinaryContent(String endpointUri, String resourcePath, DownladBinaryContentParameters parameters)
       at Sitecore.CES.DeviceDetection.Providers.FiftyOneDegrees.FiftyOneDeviceDetectionClient.GetNewerVersion()
       at Sitecore.CES.DeviceDetection.Providers.FiftyOneDegrees.FiftyOneDeviceDetectionClient.DoUpdate(String serviceName, String& newDatabasePath, String& newDatabaseVersion)
       at Sitecore.CES.DeviceDetection.Providers.DeviceDetectionClient.Update()
  • Install a hotfix corresponding to your Sitecore Experience Platform version:

    See the readme.txt file inside the archive for installation instructions.

    Warning: In some cases, Experience Analytics charts and graphs might not be be rendered after hotfix installation. Please log out of Sitecore XP, and login again in order for them to show up.

    Note: These packages are specific to Sitecore XP versions. After applying the hotfix, you must not install any Sitecore XP updates until Sitecore includes the changes associated with the hotfix in a public update.

    You can find more details about hotfixes here: /articles/077333

    If a hotfix for another Sitecore XP version is needed, another hotfix has already been installed in your solution, or if you have any additional questions, please contact Sitecore Support.

Applies to:

CMS 9.0 Initial Release - 9.0 Update-1

CMS 9.0 Update-2

February 15, 2018
October 21, 2019

Reference number:



  • xDB