US Roaming Plan - Data not working in US

[DanGolden]

I just subscribed to the Canada and US data, talk, and text plan but now that I'm in the US for travel it is not working.

I've gone through all the troubleshooting steps and have only been in major cities (Denver, Minneapolis).

I can see my phone trying to connect to LTE every few minutea but it only connecta for half a second. 

any idea what's going on?

[Vinson5]

Having this exact problem today and this solved it. Thanks y’all 

[softech]

@DanGolden 

the trouble is automatic network on your phone would pick the one it thinks is the best, so, you might want to manually connect to both networks to see which one gives you the best connection

For roaming, 5G connection still not the most stable one.   You can try , but always fall back to 4G if you have trouble with it

[DanGolden]

Manually switching to AT&T and then turning off 5G worked.

Will I need to do this everytime I come to the USA?

[DanGolden]

Galaxy S21+

[golfball]

What kind of phone do you have?

[softech · Accepted solution]

@DanGolden 

Critical part to US roaming depends on T-Mobile/AT&T coverage and whether you can connect successfully onto either network.

If the phone is not connecting to T-Mobile/AT&T, change the Network Connection from Automatic to Manual and select and test both T-Mobile and AT&T and see which one you can connect.

If your issue is with data, make sure your Roaming Mobile data is enabled and you have disabled your mobile data limiter.  Also change your network mode to 4G (and don't try 5G until you can connect and works on 4G)

If your issue is with voice, make sure VoLTE is enabled on the device setting.  And if it does not work, try to change the Network to T-Mobile ONLY, and change  Preferred Network Type or Network Mode to 2G and see if the calls go through.
Also, you can download VoIP app TextNow as a workaround to make calls and text if you have Wifi or if your roaming has data component and data  is working