How do I fix my Cisco UC540

vikram_jiandani · ‎03-12-2012

I'm having a number of issues with my Cisco UC540 network. We have 7 phones in the office and only one of them is able to connect. The rest of them just keep restarting. The problem has been getting progressively worse over the months. Recently, the wireless stopped working as well. We've been losing phones one by one. I'd appreciate any help. Here's some basic information from the web interface.

Cisco UC540W-FXO-K9 (MPC8358) processor (revision 0x100) with 249856K/12288K bytes of memory.
Processor board ID FHK145277KW
MPC8358 CPU Rev: Part Number 0x804A, Revision ID 0x20
14 User Licenses
10 FastEthernet interfaces
2 terminal lines
1 Virtual Private Network (VPN) Module
4 Voice FXO interfaces
4 Voice FXS interfaces
1 Voice MoH interface
1 802.11 Radio
1 cisco service engine(s)
128K bytes of non-volatile configuration memory.
250880K bytes of ATA CompactFlash (Read/Write)

paolo bevilacqua · ‎03-12-2012

Have you reloaded the unit?

Have you updated software?

Are you working with a certified UC Cisco partner?

vikram_jiandani · ‎03-12-2012

If by reloaded you mean rebooted/unplugged and plugged back in, yes.

I used the check for updates on the software and updated it.

No.

vikram_jiandani · ‎03-12-2012

Update:

I got the wireless working again by installing Cisco Configuration Assistant and turning off the broadcast and turning it back on. Unfortunately the phones are still looping on downloading *.cnf.xml then rebooting.

David Hornstein · ‎03-12-2012

Hi Vikram

When you checked for updates, by the sound of it all you did was update the Cisco Configuration Assistant (CCA)

Paulo asked a most relevant question, are you working with a Cisco partner and have you updated the software on the UC500 itself.?

It may be useful to ask the partner to check to see if you are up to date with UC500 operating system. Just from your description sounds like a file in flash memory may have been lost (maybe, not even 10 percent sure that is your issue).

A software update, will refresh the firmware on the system and update files that may have been lost...

but, m ake sure you use CCA maintenance tab to back up the complete system configuration.

If you have any questions you alos have the option of contacting the Small Bsuiness Support center;

www.cisco.com/go/sbsc

regads Dave

vikram_jiandani · ‎03-12-2012

Hi David,

I actually never used CCA until today. I was referring to Check For Updates in the Cisco Small Business Office Manager. I have come to realize that this button does not update the software on the UC500 so to my knowledge the software on the UC500 was not updated.

We are not working with a Cisco Partner at the moment.

I looked at the phone status in CCA and it says Unregistered for most of them, Deceased for two, and Registered for the one that's working.

Also, when I try to backup the configuration, it fails and gives an error. Error opening TFTP timed out. UC loopback network unreachable.

EDIT:

Looks like I have CME 8.1.0 installed.

David Hornstein · ‎03-12-2012

Hi Vikram,

Backup failure

With the backup failure, do you have wireless turned off on your PC ? If it's on turn it off
Do you have any personal firewalls turned off on your PC ?
I guess the UC500 is not your WAN router, but just the phone system, is this the case. two questions to figure that out is;
- what is the default gateway of your PC?
- what is the IP address you put into CCA to get to the UC540?
It maybe that you have a default route in your PC pointing to an alternate internet gateway. If this is the case, you will need to add a non persistant static route to your PC, so that your PC can communicate with the UC500 loopback interface. But I don't know the IP details or setup of your UC500.

Hence the need for you to work with a Cisco Partner or Small Bsuiness Support Center ( SBSC ).

Phone registration failure

CCA will suck out the configuration of the UC540w to see what is configured.

As a warning, CCA is a very powerful tool that is not recommended for use by a end user without appropriate CCA training. You could make things only worse, that's my concern.

What is the model of the phone that is registered ?

what is the models of the phones that are unregistered ? I am only guessing that the phone load (drvers) within the Uc500 have been deleted or someone has modified the configuration.

You will need an a Cisco Connection Online (CCO) login to be able to download the appropriate software install package for your Unit. Still really makes sense for you to work with a Cisco partner to get this resolved.

regards Dave

vikram_jiandani · ‎03-12-2012

Backup failure:

I'm using a Window's PC with Windows Firewall turned on. It asked me about opening ports when I launched CCA and I allowed it on domain and private.

I'm using a wired connection and the PC doesn't have a wireless card.

The IP of the default gateway is 192.168.2.254 and points to a SonicWall router.

The IP address of the UC540 is 192.168.2.1.

Phones:

All the phones are SPA504G and the phone load drivers all seem to be present. I downloaded the software package for 8.2.0 but haven't installed it. The one phone that's working is using the same config as all the other phones. I'm guessing but it seems like the UC540 doesn't want to lease an IP address to the phones. I have two indications that this is the case.

1. When I factory reset one of the phones, it failed to lease an IP.

2. When I look at the unregistered phones in CCA they all have 0.0.0.0* for their IP.