Which device are you using? Other users have reported issued with non-Sprint branded devices not connecting to LTE roaming. In the last couple weeks I was able to connect to USCC LTE roaming with my LG G7 and data was just fine.
So I’ve always somewhat relied on U.S. Cellular roaming with sprint ever since I became a sprint customer because U.S. Cellular sold their St. Louis market to sprint. So I went years meeting my allotted roaming data because we have a weekend place in a rural area only covered completely by U.S. Cellular. Then recently with the new LTE roaming agreement sprint and U.S. Cellular made I was so excited because it would be considered native roaming and I would have access to LTE data and no data caps. Once the roaming was implemented it worked the best (for a few months) I had ever experienced speeds were usable and my phone was on 3g 50% of the time and lte 50%. Now (within the last month or two)data seems to be useless. I can’t do anything but call and text and my phone hardly ever has usable data. My phone seems to never be on LTE anymore and on 3g and even 1x most the time. I thought maybe it could be the tower being overloaded but driving home from our place the experience doesnt change at allgoing from tower to tower. I thought maybe it was something to do with my device or account but we had relatives up recently using sprint and they have the same problem. Then I asked another family member who is a U.S. Cellular customer and lives in that general area if he has experienced slow data recently and he said no it has been working like it always has. So I have no idea why it’s happening. Anyone here have any idea why this is happening? Sorry for the long post I know it’s probably too much but I didn’t want to leave out any details.