can't web login to AP8841

[Anonymous user]

I have an AP8841. When I attempt to access web console, I get message

ERROR: The application was not able to load
You are attempting to access an APC device.
There was a problem loading the application. please login to telnet for more details.

So I telnet into the device. It's not obvious what's wrong.
Other threads in this forum suggest maybe firmware needs updating. However it looks like I have latest stuff. About gives me this:

American Power Conversion Network Management Card AOS v5.1.2
(c) Copyright 2009 All Rights Reserved RPDU 2g v5.1.0
-------------------------------------------------------------------------------
Name : Unknown Date : 03/27/2011
Contact : Unknown Time : 21:52:26
Location : Unknown User : Administrator
Up Time : 0 Days 0 Hours 4 Minutes Stat : P+ N4+ N6+ A$


Type ? for command listing
Use tcpip command for IP address(-i), subnet(-s), and gateway(-g)

apc>about
E000: Success
Hardware Factory
---------------
Model Number: AP8841
Serial Number: ZA1051026106
Hardware Revision: 02
Manufacture Date: 12/18/2010
MAC Address: 00 C0 B7 55 6F C8
Management Uptime: 0 Days 0 Hours 4 Minutes

Network Management Card
---------------
Model Number: AP9537
Serial Number: ZA1051010554
Hardware Revision: 05
Manufacture Date: 12/15/2010

Application Module
---------------
Name: rpdu2g
Version: v5.1.0
Date: Apr 14 2010
Time: 14:50:01

APC OS(AOS)
---------------
Name: aos
Version: v5.1.2
Date: Apr 5 2010
Time: 14:03:27

APC Boot Monitor
---------------
Name: bootmon
Version: v1.0.2
Date: Jan 21 2010
Time: 13:35:57

apc>

I'm also confused because this was working fine when we first got the unit, and we've made no firmware upgrades or other changes to the unit.

[BillP]

great. and yes, all three files are generally required.

[Anonymous user]

eventlog gives the following response:

E100: Command Failed
Event Log Not Available

I only have access to this system from a linux box. Was there some way that I can update firmware images simply by ftp'ing them to the IP address or something like that?

[Anonymous user]

I ftp'd the apc_hw05_aos_512.bin file to the PDU and I believe it accepted it, because it closed the ftp and when I logged in again it said uptime of 1 minute.
Also the status has changed from A$ to A- Still can't get in via web and eventlog is still unavailable.

[Anonymous user]

flashing all 3 files seems to have fixed it!!
Thanks!!

[BillP · Accepted solution]

I had the same issue.

reinstalling the firmware using the upgrade utility worked for me as well.

Thanks!