the Authentication is part of the Header not of the GET line. The GET Line is everytime the same: GET /URL HTTP/1.1. i think it has to be something like this:
it has to be the same string like you see in Wireshark.
Sorry to bring up this issue again. I'm also faced with the same issue of authenticating using LabVIEW and TCP/IP.
Could you kindly let me know what was the final header format that you followed to send the authentication command? Right now I'm at the same situation you were with error 401 appearing all the time.
I want to login webpage of wireless router,but when I use wireshark to capture the communication data,there is no Post action.
I can find the user name and password information in Get action.
However,I can not log in successfully.
User name and Password information is included in Get action.
When I use this information to try login,but it still failed.
Any help is appreciated.