IP Office phones randomly going to "Discover"

[didster]

Hi there,

We have a small (~20) phone deployment of an IP office 500 that has been working fine up until a few weeks ago.

Now, at what would seem random intervals, each of the phones sometimes switches to "Discover" and any active call on them will drop. It takes anything up to 10 minutes for the phone to come back alive. If you pick up a non-discovering phone when one of them is discovering, it seems to work just fine.

Based on other threads I figure this is some problem with the phones seeing the IP office unit on their keep alive.

I have checked all the IPs of the phones and there are no conflicts. I have isolated the system down to one switch, the phones and the control unit. Same problem.

I have replaced the switch with another but I only have 1 POE switch and only 1 separate power supply for the phones. Same problem.

I have replaced all the Ethernet cables. Same problem.

Can I only assume there is a fault with the control unit? Or is there anything else that can be checked?

The lights on the front of the control unit are green and then flash amber every few seconds - does that mean anything?

I'm going to try a system upgrade tonight and see if that helps.

Many Thanks

 

[TheSmash]

Sounds like a LAN port issue. is the IP500 a V1 or V2? What software level?



ACSS (SME)

One of these days everything will work as it should, and then we'll all be out of a job!

 

[tlpeter]

I have seen LAN port issues on IP500V1's
The port can break down on "heavy" use because of a failure.


BAZINGA!

I'm not insane, my mother had me tested!

 

[amriddle01]

Sure do, 406's were even worse for this. About time they installed Gig ports anyway, looks a bit iffy/cheap when you install on a site with gig laptops, gig switches, gig phones and then the system is 100 meg

 

[didster]

Its a V1
System software is currently 4.2(17) but Im going to try an upgrade tonight.

Oddly enough it seems to "last" longer when there is no voicemail server connected - although still eventually goes down - but its after hours rather than minutes.

Bin?? ;o)

Thanks

 

[Bas1234]

Check the DHCP server, looks like dhcp lease issue. Is the system installed 365 days ago?

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Dain Bramaged (Avaya Search tool

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[didster]

Hi

The system was using DHCP when the problem first started occurring but I have since switched it all to static.

Its a pretty old installation but rebooted frequently. It was working fine and in the spirit of if it aint broke, dont fix it, i havent upgraded it for some time.

 

[Bas1234]

Check the phones, my guess someone has a duplicate ip address in use which belongs to the IPphones/IPOffice.

___________________________________________
It works! Now if only I could remember what I did...

Dain Bramaged (Avaya Search tool

http://tinyurl.com/bas1234

)
______________________________________

 

[didster]

Ive checked them all - even with just one phone connected to the IP office it still does the same thing ;o(