Mitel phones connecting to Computer across VOIP and DAta VlAN want work

When our Mitel 5330e is connected directly to the wall jack it works and when the computer is connected to the wall jack data works however when we connect the p.c. to the back on the phone jack it does not work.   On the compute we get a message media disconnect when doing an ipconfig.  We have checked all cables.

Switch config
switchport access vlan 126
switchport mode access
switchport voice vlan 180
priority-queu out
mls qos trust dscp
spannin-tree portfast

Our Firewall is a Fortinet

Phone gets IP address from DCHP on 3300

Computer get IP address from DCHP firewall
mobotAsked:
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mobotAuthor Commented:
Faulty network port in the phone

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