home internet weak signal

I've not used Nokia GW but from I hear, they both have their advantages. If the placement assistant shows that you are in a good 5G coverage area, I don't know what to tell you. I placed my router on the side of the house with the best coverage (per the placement assistant) and up high on a bookshelf and it works great. When I had it across the house in my office, it didn't get a very good signal.  Check out some of videos by Nater Tater on YouTube. He covers a lot on setting up the T-Mobile Home Internet. We've gone beyond my knowledge now.