Jhiemers ; I have tried that. I go to the "Review, edit, add or remove" page but while I can bring up the unwanted Networks it does not allow "remove". Strange eh ? My own connections do bring up the "remove" or "forget" prompt but the two in question, I suspect, do not. HItting the "Ask for help" provides no further guidance.
I have given up. Thanks to the fabbo posts by you guys from the Acadamy, a bit more settled and very careful with sweeping that arrow around.