WSUS 3.0 SP2 problems, not resolved with re-install, localized in sql comm

Hello pals,

Suddnely my WSUS reported me, that there is "no connected computers from 30 days" no my 2008 R2 server.

Strange but in WSUS admin console all groups by OS was empty, even unsotred PC's

After few checks and advices from forum, decide to reinstall.

So far, so good, but the situation is the same - no client computers ever connected to WSUS.

This is what i can see like debug:

Item 1:

C:\Program Files\Update Services\Tools>WsusDebugTool.exe /Tool:GetConfiguration

Running... GetConfiguration

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Update Services\Server\Setup

        :

        Version:3

        InstallLanguage:ENU

        ProxyPassword:

        SmtpUserPassword:

        VersionString:3.2.7600.226

        ConfigurationSource:0

        ServicePackLevel:2

        TargetDir:C:\Program Files\Update Services\

        InstallType:1

        EnableRemoting:1

        WsusAdministratorsSid:S-1-5-21-673598038-153398211-3370771635-1240

        WSUSReportersSid:S-1-5-21-673598038-153398211-3370771635-1239

        SqlServerName:AD\MICROSOFT##SSEE

        SqlAuthenticationMode:WindowsAuthentication

        SqlDatabaseName:SUSDB

        SqlUserName:

        SqlEncryptedPassword:

        SqlInstanceIsRemote:0

        wYukonInstalled:1

        ContentDir:D:\WSUS

        PortNumber:80

        IISTargetWebSiteIndex:1

        IISTargetWebSiteCreated:False

        IISUninstallConfigFilePath:C:\Program Files\Update Services\setup\Uninst

allSettings.xml

        IISPreviousInstallRevision:

        IISInstallRevision:3.2.7600.226

        IIsDynamicCompression:-1

        EncryptionParam:System.Byte[]

        EncryptionKey:System.Byte[]

        UsingSSL:0

        HostHeader:

After this line begans errors:

Error processing node: GetConfiguration

System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)

   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)

   at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection

owningObject)

   at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfoserverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)

   at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)

   at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)

   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)

   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)

   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)

   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)

   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)

   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)

   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)

   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)

   at System.Data.SqlClient.SqlConnection.Open()

   at Microsoft.SoftwareDistribution.Tools.SqlHandler.HandleQuery(TextWriter dataWriter, String baseDirectory, ArrayList sqlQueryList)

   at Microsoft.SoftwareDistribution.Tools.InstallConfiguration.DumpData(StringbaseDirectory, String nodeName, XmlNode infoXml)

   at Microsoft.SoftwareDistribution.Tools.SusServerTool.ProcessDumpNode(XmlNode dumpNode)

Item 2: Acording this advice http://technet.microsoft.com/en-us/library/dd939833(WS.10).aspx I've checked:

C:\Program Files\Update Services\Tools>Reg query "HKLM\SOFTWARE\Microsoft\Update Services\Server\Setup" /v SqlServerName

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Update Services\Server\Setup

    SqlServerName    REG_EXPAND_SZ    %computername%\MICROSOFT##SSEE

C:\Program Files\Update Services\Tools> sqlcmd -S  %computername%\MICROSOFT##SSEE  -E -d SUSDB

1>

Item 3: http://localhost/selfupdate/

And that's all?

WSUS service is started, no problems on admin console

MSSQL service is tarted, no problems

Ther is WSUS administrator and WSUS reporter groups

Any other ideas ?!?