Something that could be useful to other users :
After the Windows 10 Creators Update this night, the EQ Item Collector didn't list my usual network interface anymore. I was able to fix it using that procedure :
- go to Windows Settings
- click "Network & Internet"
- click "View your network properties"
- right-click "Local area connection" and click "Properties"
- check "Win 10Pcap Packet Capture Driver"
- click "OK"
and voilà !