RUTX50: UE identity cannot be derived

[victor]

I have a RUTX50 installed in my camper, attached to a Poynting MiMo-3-V2-17 antenna on the roof. It has a Dutch Vodafone SIM card installed.

I’m currently in France, and I’m seeing disconnects every few minutes. Each time, the Web UI displays the message “Mobile EMM reject cause: UE identity cannot be derived by the network” along with the disconnect.

I’ve done a factory reset, and all mobile connection settings are set to “auto”. Any assistance to get this working properly would be greatly appreciated.

[iBoucher]

Hi, are you sure that SIM card can work in roaming? Is APN correct? Can you try to disable 5G by selecting 4G + 3G network type?

[victor]

So this SIM card worked in Luxembourg and Belgium, but I double checked by putting it in my iPhone, and noticed the “Allow roaming” toggle was switched off. I switched it on, put it back in the RUTX50, and now the disconnects happen a lot less often. They still do, but just not as frequent. At least this is usable. Thank you so much, and I can’t believe I overlooked this.

Still wondering what the “UE identity cannot be derived by the network” message means though.

[iBoucher]

There is no such a button as Allow roaming in RUTX50. What are you talking about?

[victor]

As I said, I put the SIM card in my iPhone to verify whether roaming was allowed. That’s where I changed the “allow roaming” toggle (or however it’s called).

[iBoucher]

Oh, okey, got it. So still, can you try my suggested steps?

[victor]

So I have been trying your suggestions over the past few days and I’m still seeing consistent disconnects, every time with the same message: “Mobile EMM reject cause: UE identity cannot be derived by the network”.