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Polycom IP 430 Phones Constantly Rebooting

tlange
Level 1
Level 1

I just installed a refurb'd 3560 48 port POE switch and configured all ports on VLAN100.  All Polycom IP 430 phones (with power adapter and without power adapter) constantly reboot every couple minutes.  Any Cisco 7960 phone does not constantly reboot and works correctly.  When I plug a small unmanaged switch into a 3560 port and then plug the Polycom phone into the unmanaged switch powering the phone with a power adapter, the phone works correctly.  So it seems that the 3560 is causing the Polycom to reboot.  Any ideas on how to fix??

3 Replies 3

Tom Watts
VIP Alumni
VIP Alumni

Hi Tim, try setting the port manual instead of auto.

-Tom
Please mark answered for helpful posts

-Tom Please mark answered for helpful posts http://blogs.cisco.com/smallbusiness/

This is what I did:

switch#config terminal

switch(config)#interface fastethernet0/18

switch(config)#power inline static max 7000

switch(config)#end

I ran show inline power and saw that port 18 was set to static at 7W.  I plugged in the phone and it continued it's reboot cycle.

Any other suggestions?

int fa0/18

speed 100

duplex full

Also try to 10 half

speed 10

duplex half

-Tom
Please mark answered for helpful posts

-Tom Please mark answered for helpful posts http://blogs.cisco.com/smallbusiness/
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