The following message may help in diagnosing the problem: The Active Directory membership provider has not been configured to support search methods.
This error usually displayed when Active directory is choosen to get ASP.net based website members
Just add : enableSearchMethods=”true” in the web.config file as detailed below
| ASP | | copy code | | ? |
| 01 | <membership defaultProvider="MyADMembershipProvider" > |
| 02 | <providers> |
| 03 | <add name="MyADMembershipProvider" enableSearchMethods="true" |
| 04 | type="System.Web.Security.ActiveDirectoryMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, 
 PublicKeyToken=b03f5f7f11d50a3a" |
| 05 | connectionStringName="ADConnectionString" |
| 06 | attributeMapUsername="sAMAccountName" |
| 07 | connectionUsername="Domain\UserName" |
| 08 | connectionPassword="PassWord"/> |
| 09 | </providers> |
| 10 | </membership> |
| 11 |