in home service need

[Dawnrusso4]

system was in my new home at time of purchase at covid time. No one could come into home. Never explained only over phone. Then had someone come out to show and hook up but he did not speak english well and could not understand. So, I do not know my password. Also, there are different lights showing on the box on the ceiling that I do not know anything about. green and yellow. One of my boxes has 1 green and 2 yellow lights. The other box has 2 green and 1 yellow. The connection in my home is horrible. People come over and say that when they are in my home the connectivity is horrible. I need help and was told this system is no longer receiving in home service. Is that true and who can help?