Password protect my Ethernet Web Server - SOLVED

@mohamed66

          Serial.println(readString); //print to serial monitor for debuging

What did this print?

Regardless of what GET request the client made, you serve up the same page. That page does not contain any log on information, so how it relates to the topic you hijacked is a mystery.

@iluvatarGats
Quoting is a good thing, so we can see who you are talking to. Who's code are you interested in?