I just got T-Mobile Internet in mid April of this year. For the first 4 to 6 weeks the speed ranged from a low of around 12 to 15 Mbps download to a high between 25 - 50. Since then the best I have gotten is maybe 6.5 for a high and less than 1.0 on the low side. Prior to this I had Att which was only 3.5, Never higher but never lower. Needless to say the first few weeks with T-Mobile internet I was very happy. I should say that our phone signal normally is only 1 to 2 bars (T-Mobile). The other issue I have is because of the low signal, only 2 bars on Internet so WIFI calling will not work. Considering changing internet back to ATT even though it was only 3.5 speed but at least we never missed a call because of WIFI calling.
1) Why would the speed decrease so drastically after the first several weeks was more than 10 times better than the ATT 3.5?
2) Does T-Mobile offer a signal booster? I have a two story house so I could mount the antenna up high and run cable to inside. Generally I have 3 or more bars if outside.