Looks like after updating the firmware... with the same current version I already had fixed the issue...
Perhaps after factory resetting reinstalling firmware is good idea to do each time... not sure if that is necessary but seems to fix the multiple IP's showing up under device manager as before.. should only show 1 or 2 max ( 1 for Computer plugged into Wifi extender and 1 ip from wifi extender itself ) unless it's supposed to show just one, i've had it just show one for PC itself before separate from the wifi extender but im not sure why it shows that sometimes and sometimes both IP's for Extender + pc showing under the PC as shown in screenshot.. hope this info helps out!