WSUS Content Not Found - Client Error 404

Hi,

We recently set up a new WSUS server with Server 2012 R2 OS.
GPO's are working fine, all updates are downloaded on the WSUS server.

The problem is that the update on the client side is not downloading.
When running WSUS diagnostic tool, on the client, it says that the content is not found.

How do we fix this issue?
Permissions on the content folders are configured correctly.

Please see below:

# Solarwinds® Diagnostic Tool for the WSUS Agent
# 2018/03/12
Machine state
  User rights:                                       User has administrator rights
  Update service status:                             Stopped
  Background Intelligent Transfer service status:    Running
  OS Version:                                        Windows 10 Pro
  Windows update agent version:                      6.2.15063.674 (WU Agent update is required)
Windows Update Agent configuration settings
  Automatic Update:                                  Enabled
  Options:                                           Automatically download and notify of installation
  Use WSUS Server:                                   Enabled
  Windows Update Server:                             HTTP://WSUS-Server:8530 
  Windows Update Status Server:                      HTTP://WSUS-Server:8530
  WSUS URLs are identical:                           Identical
  WSUS URL is valid:                                 Valid URL
WSUS Server Connectivity
  clientwebservice/client.asmx:                      OK
  simpleauthwebservice/simpleauth.asmx:              OK
  content:                                           Error: NotFound (The remote server returned an error: (404) Not Found.)
  selfupdate/iuident.cab:                            OK
  iuident.cab:                                       Error: NotFound (The remote server returned an error: (404) Not Found.)
LVL 2
YeaktomIS/IT ManagerAsked:
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McKnifeCommented:
Download wuinstall trial and see what it gives you: https://wuinstall.com/
And please use https on your wsus (that would not be part of the problem, no, but it is very much recommended).
YeaktomIS/IT ManagerAuthor Commented:
Thanks for the feedback. Noted on the HTTPS for WSUS, will look in to it.

The WuInstall also seems to give errors:

Your update API: Major Version: 8, Minor Version: 0
Product Version: 10.0.15063.674

Running WuInstall as: administrator

Configured WSUS Server HTTP://WSUS-Server:8530

Searching for updates ... Criteria: IsInstalled=0 and Type='Software'

 Result Code: Succeeded

3 Updates found in total, filtering ...


1. Feature update to Windows 10 (consumer editions), version 1709, en-us
 Severity: Unknown
 UpdateClassification - Upgrades
 Product - Windows 10
 ID: 9bd958c9-6a06-4c4f-8d3d-f73968b76789
 Releasedate: 2018-03-06
 Size (MB): 3511.77
 Eula Accepted: true

2. Windows Malicious Software Removal Tool x64 - February 2018 (KB890830)
 Severity: Unknown
 UpdateClassification - Update Rollups
 Product - Windows 10
 Product - Windows 10 LTSB
 ID: 3e4e12b4-7338-4825-9d05-34863b24b570
 Releasedate: 2018-03-06
 Size (MB): 12.14
 Eula Accepted: true

3. 2018-02 Cumulative Update for Windows 10 Version 1703 for x64-based Systems (KB4074592)
 Severity: Critical
 UpdateClassification - Security Updates
 Product - Windows 10
 ID: ffc8aa26-baed-4b03-84de-a404e624d747
 Releasedate: 2018-03-06
 Size (MB): 1000.33
 Eula Accepted: true

Downloading updates ...

1. Downloading Feature update to Windows 10 (consumer editions), version 1709, en-us: Downloading finished, checking result ...
 Result Code: Failed

Detailed Result: 0x80240022 - WU_E_ALL_UPDATES_FAILED - Operation failed for all the updates.

2. Downloading Windows Malicious Software Removal Tool x64 - February 2018 (KB890830): Downloading finished, checking result ...
 Result Code: Failed

Detailed Result: 0x80240022 - WU_E_ALL_UPDATES_FAILED - Operation failed for all the updates.

3. Downloading 2018-02 Cumulative Update for Windows 10 Version 1703 for x64-based Systems (KB4074592): Downloading finished, checking result ...
 Result Code: Failed

Detailed Result: 0x80240022 - WU_E_ALL_UPDATES_FAILED - Operation failed for all the updates.
Install was specified. Beginning Install of all Updates
Installing 3 Updates
0 Updates are ready to be installed!
Beginning install ...
Error occured: Install failed with error WU_E_NO_UPDATE - There are no updates.

Runtime: 0d 00:00:11
Extended Result:
RET_WU_ERROR: YES
RET_MORE_UPDATES_MATCHING_FILTER: YES
RET_MORE_UPDATES_OVERALL: YES
RET_MAX_UPDATES_REACHED: NO
RET_REBOOT_REQUIRED: NO
RET_TIMEOUT_REACHED: NO
RET_INVALID_CRITERIA: NO
RET_SYNTAXERROR: NO
RET_INVALID_LICENSE: NO
RET_NOT_ENOUGH_DISK_SPACE: NO
McKnifeCommented:
Did you try that on a clean win10 (just 1703/1709 installed, nothing else, no AV, no GPOs)? You should.
Anything installed on your WSUS like AV/Firewall that you can remove for a test?
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YeaktomIS/IT ManagerAuthor Commented:
Permissions on the WSUS content folders are as follows:

Everyone - Read & execute
System - Full control
Network Service - Full control
Administrators - Full control
McKnifeCommented:
See my last suggestion.
DonNetwork AdministratorCommented:
You need to run (wsusutil.exe reset) on the WSUS server so that it will re-download the missing files.
DonNetwork AdministratorCommented:
Also "Permissions on the content folders are configured correctly."

During setup/enabling this role you should not have edited any permissions. WSUS sets it's own permissions.
DonNetwork AdministratorCommented:
In order to run Reset, run the following command as an administrator:

%SystemDrive%\Program Files\Update Services\Tools\WsusUtil.exe reset

A reset will

 "Checks that every update metadata row in the database has corresponding update files stored in the file system. If update files are missing or have been corrupted, WSUS downloads the update files again."

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