Connecting Yealink t22p cascaded

[Lucas1]

Hi tiflami,

I see your picture, the connection picture is not problem.
waht 's the problem with your phone, can't get IP adress?
Do you set VLAN ID? if yes, please check your value firstly.
and about PC port, please set PC Port Active(network->PC Port in webGUI) to auto Negotiation,thank you .