Is the LAN port is connected while doing the basic configuration as error says about the I/O operation is in progress.If yes just remove the cable and boot once again the ACS and then try to reset the password.
Do you have a working backup of the ACS Configuration that you could restore?
If you still have access to the GUI using the "GUI Admin credentials",
try to take a backup of the database...
It is very likely that you'll need to re-image the ACS Server
in order to reset the "ACS Console credentials".
Using the same DVD/CD to restore the Administrator password:ACS Appliance Recovery Options Reset administrator account Restore hard disk image from CD Exit and rebootEnter menu item number: This will wipe all your configuration and will re-install the OS, which will force you to re-configure some basic settings like IP address, Gateway, DNS Domain and Servers, NTP Servers...Once you have GUI access, you can restore your ACS database...the console credentials should not be overwritten by the restore...HTH.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...