Semi-Complicated Network

So, when you are stating packet loss I am assuming when running speed tests. If you are not familiar with networking tools such as Wireshark and reading packet captures trying to identify the character of the packet loss can be pretty daunting. I gave it some more thought and found a site that might help you zone in on it a bit more. https://www.dnsstuff.com/reduce-packet-loss When dealing with wireless networks and cellular connections that can be a difficult task. If the statistics on the local wireless channels look good and wired ethernet connections don't indicate a local issue then it is probably outside your control. Looking at the data on the cellular connections and understanding how that works takes a bit of time to ramp up on. Building a profile of the traffic during low volume times such as late at night vs. daytime or evening hours could help some. Getting the T-Mobile router in the best orientation to the source of the signal becomes a very important factor for good performance. I know my router is 5.3 miles from the tower and picks up 5G on the n71 channel so speed expectations are pretty well established for the conditions. If you link to a higher frequency 5G band then you might expect really good speeds. In a metro area there will be much more "noise" to deal with due to external factors.