IP Phone 7942 Port PC does not delivery IP address to Lenovo ThinkCenter M93p

[dsobrinho]

Hi guys,

Does anybody knows something like that?

Yestarday afternoon I have connect the IP Phone 7942 in the port of switch and the cable from PC to PC Port. I noticed that IP Phone works fine  but the desktop Model Lenovo ThinkCenter M93p did not take ip address from dhcp.

Remove the IP phone and test in different vendor desktop with same cables and same switch. It is works fine.

Best regards,

[luis_cordova]

Hi @dsobrinho ,

Queries:

What model of switch are you using?

Could you tell me if the power efficient-ethernet is enabled in the indicated interface?

This function comes by default in some switch models, could you try to disable it, if it is the case?

Regards

[Rodrigo Senador]

@dsobrinho boa noite.

Ja passei por esta situação algumas vezes

Segue algumas sugestões que normalmente resolvem 

Verficar a velocidade da porta se estiver em (auto) setar a velocidade para 10/100 full duplex, 

Mdix deixar em automático

Trocar o patch cord e por ultimo atualize o drive da placa de rede.

Atenciosamente,

Rodrigo Senador