Z2 G5 SFF Desktop cant connect to Cisco IP Phones pc port

[Matt1959]

We have a new models for us to roll out to users they are Z2 G5 SFF Desktop Win 10 machines.  Many of our users have Cisco IP Phones (i.e. models Cisco IP Phone 7841's and 7942's, etc)  and need to use the pc port on those phones to plug their Ethernet cables into.  We imaged a pc with our normal image and if they plug to the wall jacks they work fine and get a network connection.  However, taking that same pc and plugging into the pc ethernet port on the back of the phones dont get a network connection even though the back of the pc RJ-45 jack flashes green.  Our other desktop pc models have worked fine for years using those Cisco IP Phone ports.  Its just the Z2 G5 SFF desktop models that wont connect to the Cisco IP Phone pc ports.  They do connect fine if there is are wall jacks available but not all offices have an available wall jack.  I updated the ethernet driver (Integrated Intel 1219LM GBE Controller (Intel vPro with Intel AMT 12.)) from the HP site but still no go.  I was thinking of updating the BIOS  as well ... Has anyone run into this?

Thanks

Matt

[itsmyname]

@Matt1959 -- try this:

1. disconnect the PC from the phone's port
2. power-off the PC
3. power-on the PC
4. at a command-line prompt, enter CMD and press ENTER
5. enter IPCONFIG  /ALL  and press ENTER
6. what are the IP-settings for the Ethernet adapter?
7. with a "CAT 5e" or "CAT 6" cable, connect the PC  to the phone's port
8. repeat #5 & #6
9. tell us the results. Hopefully, the values make sense for computers on your LAN
10. disconnect the Ethernet cable from the phone port
11. disconnect the Ethernet cable from the wall-port and the phone
12. connect the Ethernet cable from your PC to the wall-port
13. repeat #5 & #6. Tell us the results

I hope this helps.