Joined: 26-July 03
Member No.: 52386
Xbox Version: v1.4
360 version: unknown
If you're using Windows XP SP2, turn off "Windows Firewall" from control panel. 3rd party firewalls can cause problems too.
I just converted from FlashFXP to Avalaunch. Seriously, upgrade your dashboard to Avalaunch on both Xboxs. The transfer is ridiculously faster than FlashFXP, plus you don't need your PC anymore. You can do all this through Avalaunch file manager.