This is my 6th month on t-mobile 5G Internet. It used to be good for the first 4 or 5 months, but recently the service became unstable, connection on and off, download/upload speed sometimes are very slow, upload speed is sometimes < 1mpbs. Restart the modem sometimes helps. The modem stays where it was when service is good. When I encountered the issue, the signal on the model is “good” .
Any thoughts?