I didn't know you can use the Inseego 5G with Calyx. Maybe one day I'll try it. But anyway back to your problem.

I've had a similar problem with my Inseego 8000. I had that hotspot tethered to this little router. I wanted it to give power to the hotspot and have the hotspot provide an IP address and data. I didn't want the hotspot to act as a wifi hub. Well that little router wasn't providing enough power to my hotspot. So the hotspot would just die of a low battery every once in a while. This was my solution. I had a USB A to A cord connected from that Y-splitter to my little router, something like this, and that provided data. I then used the USB C part to power the hotspot. Haven't had a problem concerning power since.

https://www.amazon.com/dp/B07FCX35H8/ 3ft these are good

https://www.amazon.com/dp/B01KRO8D20/

6ft if you need longer

Both verified to work by the biggest miners I know, would be me too but they're sitting in an amazon box still lol, will update if they don't work.

This one also work.

Rankie USB 3.0 Cable, Type A to Type A, 1-Pack 6 Feet https://www.amazon.com/dp/B01KRO8D20/ref=cm_sw_r_cp_api_glt_fabc_E1ZJZJVJYX2VDCXG1WQZ?_encoding=UTF8&psc=1