AP7921 "Communication has been lost"

[Anonymous user]

Hello,

I have some AP7921.

One of these devices shows me "Er" on the display. When I connect with the webinterface I can see the message "+Communication has been lost to the device!+".
The eventlog shows me " +10/06/2010 07:49:37 Switched Rack PDU: Communications lost+.".

The Email with errormessages:

Name : xxx
Location : xxx
Contact : xxx
http://xxx.xxx.xxx.xxx

Serial # : xxxx
Date: 10/06/2010
Time: 07:49:37
Code: 0x0F08

Switched Rack PDU: Communications lost.

I tried to press the reset button near the display and to reboot management interface.

Both attempts were unsuccessful. What can I do to find and correct the error??

Greetings
Sebastian

EDIT: The load status: Load: 0.0 Amps

Message was edited by: swegener

[Anonymous user]

Hello,

thanks for your help. Apparently it helps to switch off the device. I will check it regulary an maybe I will install the new firmware soon.

Greetings
Sebastian

[BillP]

there is an updated rev available on apc.com if you want - 3.7.3 rpdu

[Anonymous user · Accepted solution]

Hi,
thanks for your reply. These information I found:

Application Module
+ +
Name: rpdu
Version: v3.7.0
Date: 01/13/2009
Time: 15:30:40
+ +
+ +
APC OS (AOS)
+ +
Name: aos
Version: v3.7.0
Date: 01/13/2009
Time: 14:17:08

EDIT: Maybe this is helpful:
Hardware Revision: B2
Manufacture Date: 08/25/2007

Message was edited by: swegener