To ensure the best level of protection, Microsoft Update allows for rapid releases, which means smaller downloads on a frequent basis. Thus, the delta can be larger, resulting in larger downloads. If you have set Microsoft Security intelligence page updates as a fallback source after Windows Server Update Service or Microsoft Update, updates are only downloaded from security intelligence updates when the current update is considered out-of-date.
By default, this is seven consecutive days of not being able to apply updates from the Windows Server Update Service or Microsoft Update services. You can, however, set the number of days before protection is reported as out-of-date. Devices must be updated to support SHA-2 in order to get the latest security intelligence updates.
Each source has typical scenarios that depend on how your network is configured, in addition to how often they publish updates, as described in the following table:. If you set Windows Server Update Service as a download location, you must approve the updates, regardless of the management tool you use to specify the location.
You can set up an automatic approval rule with Windows Server Update Service, which might be useful as updates arrive at least once a day. To learn more, see synchronize endpoint protection updates in standalone Windows Server Update Service.
The procedures in this article first describe how to set the order, and then how to set up the File share option if you have enabled it. Double-click the Define the order of sources for downloading security intelligence updates setting and set the option to Enabled.
Double-click the Define file shares for downloading security intelligence updates setting and set the option to Enabled. Specify the file share source. If you have multiple sources, enter each source in the order they should be used, separated by a single pipe.
If you do not enter any paths, then this source will be skipped when the VM downloads updates. Click OK. This will set the order of file shares when that source is referenced in the Define the order of sources This article describes how to configure and manage updates for Microsoft Defender Antivirus. However, third-party vendors can be used to perform these tasks. For example, suppose that Contoso has hired Fabrikam to manage their security solution, which includes Microsoft Defender Antivirus.
Fabrikam typically uses Windows Management Instrumentation , PowerShell cmdlets , or Windows command-line to deploy patches and updates. On the system on which you want to provision the share and download the updates, create a folder to which you will save the script. Download the PowerShell script from www. Checking the Windows Defender Event Viewer log I get an error 0xee7 "The server name or address could not be resolved". I've done a lot of searching but haven't found anyone posting a similar issue.
What am I doing wrong? I'm not sure how the client knows what the address of the InternalDefinitionUpdateServer should be. Attachments: Up to 10 attachments including images can be used with a maximum of 3. I'm not sure why the security intelligence updates shown as not downloaded yet, perhaps the updates isn't up to date. The clients could get the latest version. It seems that the WSUS can't recognize the updates for a long time.
Perhaps we could run the wsusutil. It will reset the metadata. Hope the above will be helpful. Please remember to accept the answer if the above answers are helpful. If the response is helpful, please click "Accept Answer" and upvote it. Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
First of all, I recommended to run the nslookup conmmand on the client to troubleshot. Here is related screenshot for your reference:. I suspect that the issue is related with the DNS.
We could follow the above solution to troubleshot first. Thank you for your reply. I have some screenshots, I hope they make sense and help a bit. I've setup a WSUS server on an air-gapped, disconnected network. Regular Windows updates are working. I had set the fallback order for Windows Defender definitions to the entire piped order as in the example in the GPO, but have since changed it to be just "InternalDefinitionUpdateServer" as in your screenshot.
Since doing that I'm not seeing the "The server name or address could not be resolved" error any longer in Event Viewer, but the client computer is still not downloading the definition updates.
Now that I've changed the Fallback Order to just "InternalDefinitonUpdateServer" I no longer get the "server not found" issue and there isn't an event logged in the "Windows Defender" log when I try to update the definitions.
There is an event listed on the WindowsUpdateClient log. I think the DNS issue is cleared up now, but the issue appears to be that there are Definition updates sitting on the WSUS server and WSUS sees that the client computer needs them, but when checking for updates from the client zero updates are found? According to the above description, it seems that the clients haven't tried to check for security intelligence updates for several days. Could we try to check for updates manually first?
We could follow the below screenshots and click the following icons:. With Endpoint Protection in Configuration Manager, you can use any of several available methods to keep antimalware definitions up to date on client computers in your hierarchy. The information in this topic can help you to select and configure these methods.
Updates distributed from Configuration Manager - This method uses Configuration Manager software updates to deliver definition and engine updates to computers in your hierarchy. Updates distributed from Microsoft Update - This method allows computers to connect directly to Microsoft Update in order to download definition and engine updates.
This method can be useful for computers that are not often connected to the business network. Updates from UNC file shares - With this method, you can save the latest definition and engine updates to a share on the network.
Clients can then access the network to install the updates. You can configure multiple definition update sources and control the order in which they are assessed and applied. This is done in the Configure Definition Update Sources dialog box when you create an antimalware policy.
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