FAQ
TL;DR: Play SIMs on T‑Mobile domestic roaming cap downloads at 3 Mb/s; "DL limited to 3Mb/s". For higher speeds, disable roaming (RK) and connect to Play’s own 3G/LTE using APN internet. [Elektroda, matek451, post #17442878]
Why it matters: This FAQ helps Huawei E3372 users fix Play SIM setup, roaming messages, and speed caps without paying extra.
Quick Facts
- APN for Play on Huawei E3372: "internet"; username and password blank. [Elektroda, sosarek, post #17442049]
- Play operates in domestic roaming using other operators’ infrastructure (e.g., T‑Mobile). [Elektroda, sosarek, post #17442187]
- In domestic roaming on T‑Mobile, Play voice SIMs connect on 3G with ~3 Mb/s download cap. [Elektroda, matek451, post #17442878]
- No extra charge for domestic roaming data on Play. [Elektroda, sosarek, post #17442227]
- If you attach to a BTS labeled T‑Mobile, you’re outside Play’s own coverage at that spot. [Elektroda, sosarek, post #17443271]
What APN settings do I use for a Play SIM on Huawei E3372?
Create or edit a profile in Huawei Internet Manager. Set APN to "internet". Leave username and password blank. Save and connect. [Elektroda, sosarek, post #17442049]
Why does the modem show T‑Mobile or ‘roaming’ when I insert a Play card?
Play uses domestic roaming and can attach via other operators’ networks like T‑Mobile. Seeing T‑Mobile or a roaming label is normal. [Elektroda, sosarek, post #17442187]
Do I pay extra for domestic roaming data on Play?
No. There are no additional fees for domestic roaming. As one expert put it: "No - you will not pay." [Elektroda, sosarek, post #17442227]
Why is my download speed stuck around 3 Mb/s on Play?
In domestic roaming on T‑Mobile, a Play voice SIM logs to 3G with a ~3 Mb/s download cap. "DL limited to 3Mb/s." To go faster, use Play’s own 3G/LTE. [Elektroda, matek451, post #17442878]
Can I get LTE while I’m on domestic roaming?
No. Domestic roaming attaches on 3G only. LTE is available when you connect to Play’s own network. If Play coverage is absent, the cap remains. [Elektroda, matek451, post #17442878]
How do I turn off domestic roaming (RK) to force Play’s network?
Use the modem’s Internet Manager settings and disable data roaming. "You turn off RK on the modem. But you need to be within the Play network." [Elektroda, matek451, post #17442878]
How do I restore full Play speeds? (3‑step quick fix)
- Turn off domestic roaming (RK) in the modem.
- Move within Play’s 3G/LTE coverage or verify coverage first.
- Reconnect and re‑test speeds.
[Elektroda, matek451, post #17442878]
The Connect button is greyed out. What fixes it?
Ensure your profile uses APN "internet" with blank username and password. Recreate the profile if needed, then try Connect. [Elektroda, sosarek, post #17442049]
Does switching the network mode to 4G/LTE help if I’m roaming?
No. While in domestic roaming you stay on 3G with the ~3 Mb/s cap. Switching to 4G helps only on Play’s own network. [Elektroda, matek451, post #17442878]
How can I check if I’m in Play coverage or which BTS I’m using?
Check your location and nearby sites on btssearch. It helps confirm whether you can reach Play’s own 3G/LTE instead of roaming. [Elektroda, sosarek, post #17443282]
Why did support suggest disconnecting and reconnecting?
Reconnecting can attach you to a better cell or refresh the session. Then reassess coverage and speeds after reconnecting. [Elektroda, sosarek, post #17442278]
Orange worked fine here. Why is Play different?
Orange uses its own infrastructure. You were likely in Orange coverage. Play often relies on domestic roaming, which behaves differently. [Elektroda, sosarek, post #17443282]
Can I change to 4G or LTE right now at my location?
Only if LTE is available where you are. In the shared screenshot, the view showed 3G coverage there, not LTE. [Elektroda, sosarek, post #17442815]
Where do I toggle roaming — Windows or the modem app?
Manage roaming in the Huawei Internet Manager app for the modem, not in Windows network settings. [Elektroda, sosarek, post #17442187]
My speed is just over 400 kb/s even with full bars. Is that expected?
Yes, observed speeds can be low despite strong signal. One user saw just over 400 kb/s, consistent with roaming limits and conditions. [Elektroda, Joggos, post #17442234]
