Another wireless MBL Time Machine issue

Thank you everyone for the responses. It was indeed the IGMP Proxy setting on the router that was causing the problem.  Apparently it’s a feature on newer Verizon routers that doesn’t even have a purpose yet (something for the future.)  I disabled it in advanced settings, restarted my laptop – with WiFi on – and presto, the MyBook Live Time Machine backup was there.  Go figure.  This is why these forums are so great.