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Vantage K175 strange "unstable network loop"

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MrFooF

IS-IT--Management
Jun 18, 2013
108
FR
Hello,
I have a K175 that do a strange thing.

Customer with with 2 different Voice VLAN.
The phone seems to be lost in the VLANs :

It is like it switches from one VLAN to other after a few minutes (1-2) in loop .

Therefore unable to maintain connection, messages of all types ( no IP, No SIP controller, IX Workplaces hungs, Update downloads... )
Black screen every 20-30s
And every ~60s, the Avaya sound logo.

After some time, variable (>>15 minutes ) it stabilizes.

I disabled LLDP through 46xxspecials.txt, no effect.

Do you encountered the same issue or have some ideas ?
All info is welcome
 
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