Well, it worked initially, then more often than not my searches produced no results or confusing error messages.

Experimented a lot with the SearxNG settings, and also with my browser and firewall settings in case there was some issue there, and eventually gave up.

I was unable to find information online about the issues I experienced, in part because I had no idea how to describe them in order to find help.

Think I tried it in three different browsers, over the course of a month or so, but primarily in Firefox.