I've noticed my download throughtput is less than 10mbps when I was getting 40 to over 100. thought it was due to local tower congestion. but we took a 300 mile trip. anytime i saw a 4 or 5 bar signal, i tested. and still less than 10mbps down.
i havent seen it this bad for over ten years on multiple phones.
We always want you getting the best possible speeds at all times. What device was this happening on? When did this change first occur?