OK, I do not know what to think anymore. Here is the thing. I installed the 2.3 pro in my v1.1 xbox and everything worked perfectly. My friend has a 1.0 xbox and also got the 2.3 pro. We installed it and flashed it with the exact same BIOS I used on mine (4977). The problem is, we can not FTP to his harddrive. I know what you guys are gonna say, but here is the strange part, we unpluged the cat5 cable from his xbox and put it in mine and the FTP connected right away. It gets ever stranger, after trying it at his house for 5 hours with no luck, I take his xbox to my house and the FTP connected with no problems at all . Sooooo his xbox will ftp at my house but not his. If anyone has any idea on what we can try next, please let me know.
We are using the same ftp software (smartftp), same bios (4977), same mod chip (2.3 pro) same router (linksys 4-port wired)