[mini10me]

This is accompanied by en error in the xp system event log:

Source: PlugPlayManager
Category: None
Type: Error
Event ID: 12

The device 'Realtek PCIe FE Family Controller' (PCI\VEN_10EC&DEV_8136&SUBSYS_041A1028&REV_02\4&192ac53f&0&00E0) disappeared from the system without first being prepared for removal.

Is this typical for the 1012? Any way to fix it (get the adapter and connection to remain)? This is definitely invalid behavior, it should be possible to configure the adapter and tcp and other associated settings when not connected.

[Kiki]

Yes, it's absolute normal working method. If You unplug the UTP cable then the device will go to energy saving mode and disappear from Device Manager.

[mini10me]

Well, it may be typical, but certainly not normal. A device can be powered down, without disappearing. Even if this is being done deliberately, it should be configurable. In AC power mode there is definitely no need for this.