Hello,
According to this forum poster(linked below) you should be able to find EventId 4004 “Network State Change Event” which goes active when a network connection is made or re-identified.
Do note that this is a bit of an older post for windows 10 but the event viewer and event IDs are mostly the same between 10 and 11.
Source: Network Connection Event Logs - Microsoft Q&A
Hope this helps,
JC