Unable to connect Chamberlain garage door opener via 5g internet

I

This setup works. I had the same problem connect myq to t-mobile 5g home internet gateway for almost a year. I talked to chamberlain tech support many times and they were able to guide me to mess up the opener. I had to return the opener to Costco. Bought another one from Costco and decided to use it without the myq and camera.

I had a small wifi extender at home, setup as home gateway extender. IT WORKS!!!

I don't think T-mobile will change their protocols so I strongly suggest chamberlain publish this technique so other myq owners having the same problem can resolve their problems and enjoy myq.