I am putting links to useful internet help and info here...
You maybe looking for another website screenconnect.com Zoom.us or another site...
Are you having problems staying online?
http://www.ismyinternetworking.com/
Want to see if your Web Cam works for audio and video before your next video zoom etc...
Check your internet ports
https://www.yougetsignal.com/tools/open-ports/
Help troubleshoot tech with screenshots
https://edu.gcfglobal.org/en/subjects/tech/