Host disconnecting from webinar

Since no connection information was provided. Most likely an unstable connection is due to using WiFi instead of ethernet to connect a PC.

Welcome to the Zoom Community, @GF2023.

The answer from @storyhub is basically what I'd answer.  Whenever possible, use a direct-wired connection to your router/network when hosting, since WiFi issues are always the first culprit.  Also, note that you can bring up the Zoom Settings window and get some information from the Statistics tab.

I also suggest designating someone as Co-Host, either a trusted panelist or another associate logged in from a different computer network (easy if most people work remotely; not so easy if everyone works on site in the same building).  This way if there's a significant enough network interruption, your attendees and panelists might not even notice.  The Co-Host would become the Host, and if/when you were able to rejoin, you'd be prompted asking if you'd like to reclaim the Host role or stay a Co-Host.