SoundStation IP 6000 connected to Cisco 2960-X not working

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We have several SoundStation IP 6000 phones.

When we connect them to a 2960-X switch they do not fully work. The phone will power on, receive an IP via dhcp, but not much after that will happen.  Pinging the IP of the phone has almost 100% packet loss.  I've tried several different interfaces on the 2960-X and get the same result.  Verified that I can connect other devices to these ports and they work without issue.  Another strange thing is a few days ago the phones showed up in 'show cdp neighbor' from the switch.  Now, they do not.

Now, if I take that phone to 2960 switch connect it, it will power on and work without issue.

I've tried just about every setting I can think of on the 2960-X port to try and make this work but I can't get it to work.

Has anyone seen a similar issue like this before?  Know of a solution/work around?


Phones will not work when connected to;
interface Gi3/0/36
 switchport access vlan 403
 switchport mode access

Phones will work connected to;
interface fa0/1
 switchport access vlan 403
 switchport mode access
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Eric Gundrum

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Posted 2 weeks ago

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