wsus.JPG

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It was something related to user rights. Create another service domain ac for update services thus synchronization issue has been resolved. &nbsp;Thanks for your support.
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It was something related to user rights. Create another service domain ac for update services thus synchronization issue has been resolved.  Thanks for your support.

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WSUS shows below error while synchronizing. <br />
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WebException: The remote server returned an error: (407) Proxy Authentication Required. ---&gt; System.ComponentModel.Win3<wbr />2Exception<wbr />: The logon attempt failed
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WSUS shows below error while synchronizing. 

WebException: The remote server returned an error: (407) Proxy Authentication Required. ---> System.ComponentModel.Win32Exception: The logon attempt failed

WindowsUpdate server issue

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

Windows Server Update Services (WSUS), previously known as Software Update Services (SUS), is a computer program developed by Microsoft that enables administrators to manage the distribution of updates and hotfixes released for Microsoft products to computers.