Discover error on 5610s after booting fine

[sauroplites]

Hello,
I have been using Avaya's IP Office 406 and 500 (current) for the past four years with 5610s and 5620s. The company I work for currently has 50 users. All users are working fine EXCEPT for three who share a cube.

I am running the cable from the wall to a Netgear POE FS108P 8-port switch, with 4 POE ports. I have been using these for years with no issue. 1 port uplink, 3 ports POE for this specific setup...

The phones power up ok. They even stay on and functional for a few hours. Then, seemingly out of nowhere, they bomb out and just display "Discover 192.168.X.X" (our IP Office)

I have tried replacing with known good phones, cables, and POE switches, but the problem persists...
Anyone come across this in the past?
Thanks so much!

 

[Bas1234]

Netgear POE FS108P 8-port switch it the problem, is it hooked up to a UnTagged Voice VLAN port on the Normal switch net work?

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

Dain Bramaged
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[sauroplites]

We're not running VLANs actually. All ports on the network are the same physical network. Hmm.
Any reason why this one unit, in this one place, would be causing issues?

I do agree though... These switches are not the most reliable. Unfortunately, it's all I have to work with at the moment.
Thanks for your help

 

[Bas1234]

Then that's your problem, get a network engineer and let him configure you network. Heavy Data traffic will cause this type of errors. More and more hardware is getting connected in the years and now you start to have problems in the weakest part of the network. So VLAN is a must in VoIP. If then still having problems add QOS to it.

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

Dain Bramaged
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[intrigrant]

Connect the netgear to LAN2 on the IP Office and give the phones new IP addresses for LAN2. I wonder what will happen.

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Call Avaya, costs only €400 per hour, you must buy at least five hours.
But then you can talk to a REAL expert....
Now that is what i call support.