Forms URL: Error 404--Not Found

Hi All,

In one environment, there are multiple Forms-Servers in 3 different clusters.  For one of node, if we call URL:forms/frmservlet  then get the following error:
Error 404--Not Found
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
10.4.5 404 Not Found
The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

How can I isolate the error position?

Regards,

Moh