arcgis/services directory soap error

[PaulBelew]

Hi, why URL "myserver/arcgis/services?wsdl" cause error in browser:

"The request sent by the client was syntactically incorrect ()."

The browser is redirected to the same url after clicking "soap" link on the "myserver/arcgis/rest/services" page.
The same link on the ESRI's server is working ok: http://services.arcgisonline.com/arcgis/services?wsdl

What should I install or configure to repaire this issue?

Thanks.

P.S. I have Arcgis Server 10.1 for Windows.

[BubbaHey]

Somebody correct me if I'm wrong, but  I think that is by design. Soap won't open in browser but will using  WSDL -  http://services.arcgisonline.com/arcgis/services?wsdl

[PaulBelew]

I'm saying about the same WSDL url. It isn't opened on my server.