Accessing CLASSE web pages in Sequoia

If you get an error report similar to

while attempting to access a CLASSE web page

Select System Settings... from the  menu

Select Privacy & Security from sidebar, then select Local Network in the righthand pane

If the resulting dialog box is similar to

Then click on the slider to the right of Vivaldi and/or *Firefox*
so that the dialog looks like THIS

If you don't see any browsers listed in the Local Network pane, point your browser to a CLASSE web page
You should get a dialog similar to:

Select Allow

Unfortunately, Apple does not allow central management of this popup.
Only an end-user can allow or disallow finding devices on a local network.