i210 Device off function issue

Hello Intel,

I used i210 device off function, and look datasheet 6.2.19 bit15 setting to 1b.

So I change value B200 at address 0x1E.

And circuit used jumper JP_LAN2 setting pin.28

Then have two setting

1. 1-2 : Enable Lan i210

2. 2-3 : Disable Lan i210

Test jumper JP_LAN2, and setting 1-2 then power on.

It can see i210 operation under windows 10.

Test finish, shunt down windows.

I will setting 2-3 at JP_LAN2. => Power on => But still can see i210 operation under windows.

I need disable i210 after shunt down windows again.

What does mistake in circut or i210 code ?

Best regards,