When you configure and test the Microsoft® Windows® Server Update Services (WSUS) server connection in the SolarWinds Patch Manager Admin Console, the following error message displays:
Could not connect to server: WSUS. The request failed with HTTP status 401: Unauthorized. WSUSConnection::Unable to connect to the WSUS Server.
All SolarWinds Patch Manager versions
The SolarWinds Patch Manager environment is not set up correctly.
Resolve the issue based on your WSUS configuration.
See the Microsoft TechNet website for more information about troubleshooting 401.1 authentication problems.
If the WSUS server is not configured on the SolarWinds Patch Manager server, perform the following steps to troubleshoot the connection and the error message:
If the user updated the account password on the WSUS server, update the credential in the WSUS credential library. See Configure the WSUS Server (© 2017 Microsoft Corporation, available at http://technet.microsoft.com, obtained on December 4, 2017) for information about configuring WSUS.
For example:
Network access: Do not allow storage of passwords and credentials for network authentication
Classic
or Guest only
:Network access: Sharing and security model for local accounts
SPM-MGOM
.Connect Succeeded
displays in the Success window.
Close the window.
If you are running WSUS on Windows Server® 2012 and Patch Manager 2.1.5 on Windows Server 2016 and the above steps did not solve the problem, do the following:
iisreset
In this configuration, you may encounter a loopback security check. This Microsoft security feature prevents applications from using a fully qualified domain name (FQDN) to access web applications hosted on the same server. Perform the following steps to specify the host name mapped to the loopback address.
Back up the SolarWinds Patch Manager server before you edit the Windows Registry with Registry Editor.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
DisableStrictNameChecking
registry entry to 1
.HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0
BackConnectionHostNames
.BackConnectionHostNames
and click Modify.If the issue is not resolved, complete the procedures in the previous section.
Disclaimer: Please note, any content posted herein is provided as a suggestion or recommendation to you for your internal use. This is not part of the SolarWinds software or documentation that you purchased from SolarWinds, and the information set forth herein may come from third parties. Your organization should internally review and assess to what extent, if any, such custom scripts or recommendations will be incorporated into your environment. You elect to use third party content at your own risk, and you will be solely responsible for the incorporation of the same, if any.