Error -26547: Authentication required, please use web_set_user in LoadRunner

Action.c(12): Error -26547: Authentication required, please use web_set_user, e.g. web_set_user("domain\\user", "password", "host:port"); [MsgId: MERR-26547]

After adding the web_set_user() as suggested in the error message a further error is received:

Error -26630: HTTP Status-Code=401 (Access Denied) for "http://" [MsgId: MERR-26630]

LoadRunner does not currently support Microsoft Distributed Password Authentication (DPA)

To determine if DPA is being used in the generation log look at the header in the Server response to the initial GET. The following is an example server response:

HTTP/1.1 401 Access Denied\r\n

Server: Microsoft-IIS/5.0\r\n

Date: Fri, 15 Jan 2010 11:07:04 GMT\r\n

WWW-Authenticate: DPA\r\n

Content-Type: text/html\r\n

Cache-Control: proxy-revalidate\r\n

Content-length: 616\r\n

Proxy-Connection: Keep-Alive\r\n

Connection: Keep-Alive\r\n

Proxy-support: Session-based-authentication\r\n

Note the WWW-Authenticate:DPA

There is currently no workaround available