VPN (SonicWall) will not connect over T-mobile 5G Hotspot

NHJustin wrote:

So my situation was a little different since I was using a work laptop and Inseego MiFi hotspot and my work laptop is using Cisco AnyConnect Secure Mobility Client VPN. My work laptop locks down Network Preference Properties behind an admin account so I couldn't access any settings there. And the VPN only utilizes IPv4. However, I was able to get the Cisco VPN to work by logging into Inseego Web Admin panel. Once there, I navigated to Settings -> Advanced -> LAN -> IPv6 and unchecking the IPv6 box. Hope this helps someone! 

I will have to see if I can disable IPv6 on my P7Pro and test it. ¡Gracias! 
Still think T-Mo needs to step up and explain why they would block something that most business users would utilize.