Configuring 4G dongle on Jetson Nano

Following this link - Configuring Huawei e3372 4G/LTE dongle on jetson nano I am trying to setup a Huawei 4G dongle on Jetson Nano.
I have followed the steps and still don’t have any luck with getting connected to the internet. I am stuck in the last step where when I enter the command activate, it gets stuck on either connecting (getting ip configuration ) or connecting (prepare)
Any suggestions on solving it?

Also, Is there any other document that I should be referring to?

We don’t have any working case for 4G dongle. Maybe other users can share their experience.