Authentication error during replay

HI,

I am using web protocol and able to record my application successfully.

While replay, I am getting error :

vuser_init.c(50): Error -26547: Authentication required, please use web_set_user, e.g. web_set_user("domain\\user", "password", "host:port");      [MsgId: MERR-26547]
vuser_init.c(50): Error -26630: HTTP Status-Code=401 (Unauthorized) for "https://....XYZ...

When I am using  web_set_user() function getting another error :

vuser_init.c(12): Error -27243: Invalid port      [MsgId: MERR-27243]
vuser_init.c(12): web_set_user highest severity level was "ERROR"      [MsgId: MMSG-26391]

I have tried with all the ports like 443,8080 and 80.

As an work around I enabled Winlet replay instead of socket (in the runtime settings->Preferences).The Vugen runs fine but while running in performance center load generator I am getting :

vuser_init.c(48): Error -27492: "HttpSendRequest" failed, Windows error code=6 and retry limit (100) exceeded for URL="https://...XYZ..."

Need help to fix this.