I can't add more the same website for load balance when the distributed settings work good.

1, Set these DNS in C:\Windows\System32\drivers\etc\hosts

127.0.0.1 localhost

127.0.0.1 admin.umbraco.local

127.0.0.1 server1.umbraco.local

127.0.0.1 server2.umbraco.local

2, Set IIS

Host name: admin.umbraco.local ; Port:8070; Physical Path: E:\Deployments\UmbracoCmsAdmin

Host name: server1.umbraco.local; Port:8071; Physical Path: E:\Deployments\UmbracoCmsServer1

Host name: server2.umbraco.local; Port:8072; Physical Path: E:\Deployments\UmbracoCmsServer2

3, Install Umbraco into E:\Deployments\UmbracoCmsAdmin with simple template online.

4, Copy all the files from E:\Deployments\UmbracoCmsAdmin to E:\Deployments\UmbracoCmsServer1 & E:\Deployments\UmbracoCmsServer2.

5, Set config

5.1, Add these settings in Web.config of admin & server1 & server2

<machineKey validationKey="D70E11DC9966D22E8227F7F0574C25EECAD82FD44EBFAC02A3E40D434E142CEE4FBC9DD6F151EB82875FDC25D777B40F7B5EC5C4E711C26A770338F1FF9F291D" decryptionKey="B406E7A104E8B4FA818F1DBF1DA06D9BD2BA837A452647D9858516234BADA88C" validation="SHA1" decryption="AES" />

5.2, Change these settings in ~\Config\umbracoSettings.config of admin & server1 & server2

  <distributedCall enable="true">
    <user>0</user>
    <servers>
        <server forceProtocol="http" forcePortnumber="8070">admin.umbraco.local</server>
        <server forceProtocol="http" forcePortnumber="8071">server1.umbraco.local</server>
        <server forceProtocol="http" forcePortnumber="8072">server2.umbraco.local</server>
    </servers>
  </distributedCall>

5.3, Change these setting in Web.config of server1 & server2

<add key="umbracoContentXML" value="~/App_Data/TEMP/umbraco.config" /> from <add key="umbracoContentXML" value="~/App_Data/umbraco.config" />

5.4, Delete these in server1 & server2

~\App_Data\Logs
~\App_Data\TEMP

6, Test

If change "test content" at admin.umbraco.local, that will distribute the change to server1,server2.

7. Problems

Add "server3" as "server1" - copy all files from "admit" except "~\AppData\Logs" & "~\AppData\TEMP" and set the config as "server1". If change "test content" at admin.umbraco.local, that will distribute to server1,server2 also, but not to "server3".

I don't know what's happened.

Please help me out, thank you very much!