I have a TRB 255 fw TRB2_R_00.07.08.2 (but tried also the latest 7.10 with the same issue) with Vianova SIM card in Italy. Despite my device is connected to the mobile network with LTE B20 band the network type is stuck on 2G(EDGE) with poor speed performance.
I’ve tried to force connection to 4G ONLY in the “preferred network type” but in this case I have no connection at all. APN is set to custom otherwise there is no connection.
The same Vianova SIM inserted in my phone provides 3G, 4G and 5G connectivity with no issues.
Any idea? Is there something else I can check and try?
Hello,
The TRB255 is a Cat-M1, NB-IoT, and 2G gateway, so in the Network category selection (Network → Mobile → Connection), you can only choose M1+NB or select a single one. I recommend trying M1 only.
Additionally, you can try manually selecting the available operator in Network → Mobile → Network Selection. Please note that LTE Cat-M1 supports low speeds, with download speeds under 1 Mbps and upload speeds around 0,4 Mbps, so performance will be limited.
Furthermore, if possible, you can try using a different SIM card that doesn’t support 5G.
Best regards,
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