EP Error on installation

When I tried to install EP on Farm Non-Admin server I got the following error. I tried it from the admin account of ax.

EP Installation Error

On Event Viewer:

The trust relationship between this workstation and the primary domain failed.

Work around:

1.Check the .net Business connector configuration settings. This might be a naive approach and considering one must have already looked up seeing the log, I am suggesting to do the following work arounds.

1)      Stop firewall, all its services, delete all unused inbound  policies on firewall.

2)      Install AOS , debugger and .net connector upto RU3 on the work station. I don’t know why it required AOS but failed without it.May be its with the configuration.

3)      .Delete the workstation from domain and add it again – DNS issue.This is a WSS issue.

4)      .If database was restored & EP is installed on one server – clear the BC Proxy account from form.

5)      Recompile sysDevelopmentProxy class – ensure it compiles without error for .Net connector to work successfully.

6)      Check the site bindings from Share Point servers, also from this server.

Install EP & Role center with some luck.