Mitel 50005070 Instruction Manual download pdf (Page 290)

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101

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SX-200 ICP MX Technician’s Handbook

3. If you still can’t find the problem, call Mitel Technical Support.

IMPORTANT: Make sure you have the following information

on hand before calling:

• Is the problem with the local or remote subnet?

• DHCP server(s) settings

• Layer 2 switch configuration and settings

• Router configuration and settings

• Network Diagram

• IP addressing scheme

• VLAN configuration and settings

Table 59: IP Phone Registration Troubleshooting

Error Message on

Display

Probable Cause Corrective Action

Invalid VLAN ID DHCP Option not set

correctly.

1. Identify the location of DHCP server and

which DHCP server is assigned IP

address for the corresponding subnet.

2. For an external Microsoft DHCP server

(NT server, etc.), make sure that the

option type is set to LONG.

3. For a Cisco Router DHCP server, make

sure that the option type is set to hex,

and padded with 0s (for example,

0x00000002 for VLAN 2).

4. For the controller internal DHCP server,

set the option type to numeric.

Duplicated IP

Existing data device

owns the IP address.

1. Check the IP address on the phone

display.

2. Disconnect the IP Phone.

3. From a PC on the same subnet, ping

the suspected IP Phone. If there is a

response, identify the data device, and

resolve the conflict.

Corrupted DHCP

server.

On the suspected DHCP server, disable

then recreate the scope. If this is a

Microsoft DHCP server, reboot the server.

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