Your task is to implement a program that attempts to connect to a server up to 5 times. If the connection is successful, the program prints a success message. If it fails after 5 attempts, it prints an error message.

1. Start a do-while loop that will run up to 5 times.
2. Increment the retry count in each iteration.
3. Check if the current attempt matches the successful attempt number.
4. If successful, print a success message and exit the loop.
5. After the loop, check if the retry count reached 5.