I just switched to the T-Mobile Home Internet; received my gateway device; and I am not happy with signal strength of the device. I am put on Band 12 most of the time and speeds are terrible. With my previous provider I used a MOFI 4500 modem on AT&T network and I could lock in to Bands 2 & 4 exclusively and I had no speed issues. I ordered myself a MOFI 5500 model which includes the 5G bands to use instead of the T-Mobile provided device. When I moved the sim card from the T-Mobile device to the MOFI 5500 it registers on the network but no internet connection. If I move the sim card from my phone to the MOFI 5500 it registers on the network AND I have internet connection. Is there a restriction on the sim card for the T-Mobile gateway device? How can I make this work?
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