Issue with 5g aggregation

I have suncomm se06 pro max


Version: 3.1.0

The issue is i couldn’t aggregation 5g

Previous router i could aggregate 5g 78+40

But with this one i couldn’t
It feels like i downgraded my router … by purchasing this one

Dear @Abdulaziz_Almehmadi
It means you bought the module and install it to suncomm router by yourself, right?
Actually, RM521F didn’t tested with suncomm, it is not sure if it has some problem or not, it cannot guarantee full compatibility.