WSUS: The specified string is invalid. Parameter name: FullDomainName

DESCRIPTION


You see the following error while you see the computer reports within Windows Server Update Services (WSUS) – like computers, status of update, reports with computers:


Windows Server Update Services encountered an error. The specified string is invalid. Parameter name: FullDomainName


SYMPTOMS


Windows Server Update Services encountered an error.
The specified string is invalid. Parameter name:
FullDomainName


Details:
Microsoft.UpdateServices.Administration.WsusInvalidDataException: The
specified string is invalid.
Parameter name: FullDomainName —> System.ArgumentException: The specified
string is invalid.
Parameter name: FullDomainName
   at
Microsoft.UpdateServices.Internal.StringValidation.ValidateDomainNameString­(String paramName, String value)
   at
<snip>
 
   at Administration.Computers.List.Page_Load(Object sender, EventArgs e)


CAUSE


This is due to the apostrophe in the Computer Name of the workstation which cannot be validated.


RESOLUTION


This is a known issue. To avoid this behavior, you might want to re-name the Computer Name of the Workstation and exclude the apostrophe.

One thought on “WSUS: The specified string is invalid. Parameter name: FullDomainName

  1. Well this resolution is helpful… NOT.

    So what in the heck can be done once you have the problem and you can’t get into WSUS to remove the offending computer?

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