Put me in the stack of questions to be answered

i have updated to 2.0 and i cannot discern a difference-probably my incompetence. as far as ARC is concerned, installed on release date and nothing happened. error message trying to connect but nothing. left it alone for two days and miracle of miracles, it immediately connected. do not know how but it did. decided to drive around and connection lasted for about 5 miles and the spinning wheel took over. came back home and reconnected immediately. tried the next day and went in a different direction. same thing happened. not very technical but connection to nucleus is wired and then to an orbi router. do not see any messages about upnp or anything like that. put me in the stack of questions to be answered.
MacBook Pro with 16 GB core i9 2.3gh etc.