Home WiFi Network: Howto disable notice

I live in a motorhome, in an RV park. I move almost as often as you change your socks. I am persistently harassed, every time I boot up, with a box whining about setting the park's WiFi as my home network and running a security assessment on it. (See attachment.) OF COURSE NOT! IT'S SOMEBODY ELSE'S WIFI!

There is an important principle at work here, and two resulting questions. 1) When does an antivirus/antimalware service that I pay good money for (upfront) approach being as much of a nuisance as the viruses and malware that they're supposed to be protecting me from? 2) How do I kill that #$%^&# message box so I never see it again?

A-Thoroughly-Irritated-Tarantzilla-In-Trans-Pecos-Texas

(And how do I get this thing to accept the tags I want instead of your preprogrammed, completely irrelevant stuff?)