Cisco Switching/Routing :: 891W ISR - Can't Access Internal AP

I have an 891W router that requires a firmware update to fix a bug wth the internal AP where all you get when accessing it via the CP Express ("Launch Wireless Application", which is  just opening another web browser to your AP) is an Enter button.  This issue seems to be common so I found a thread, though for the 881W (but same process) where the fix is to update the AP's firmware. 
 
So I downloaded ap801-rcvk9w8-tar.124-21a.JY.tar from cisco.com, set it up in my tftp server, and at the console ran the following from the router:
 
Router#service-module wlan-ap 0 session <enter>
 
This brings me to the AP.  
 
I then type in:
 
InternalAP#archive download-sw /force-reload /overwrite tftp://192.168.0.71/filename.tar <enter>
 
It seems to go through the process of re-imaging the fw but the end result now after it is done is that I cannot access the ap at all and the hostname has been screwed up.  So now when I go to the AP (via Router#service-module wlan-ap 0 session <enter>), this is what I see:
 
AP6400.f177.d0ee>
 
If I type "enable", I get no username prompt but I do get a password prompt, however my pw no longer works.  Also the IP address of the AP (192.168.0.2=) is no longe rpingable. 
 
I did save the log of the console session for the (failed??) firmware upgrade process - the only odd thing I recall was that it seemed like it was trying to enter part of the update process commands but instead the router was interpreting them as a DNS lookup or something.  Kind of stupid process it seems but anyway I am quite lost.  Don't know what it'ssuch a challenge to update firmware.