Home internet service IPv6 traffic is all filtered even when using a Netgear LTE router. No port forwarding. Plz fix!

I've had nothing but problems with T-Mobile and the new cylindrical router since I got it.  It works on  most websites but for gaming services its really hit or miss.  Sometimes it works sometimes it does not.  I think it's due to lack of port forwarding.  I keep T-Mobile because it is so fast in my area, 200-400mbps typical.  But I just use it for uploads and downloads really.  I have Verizon for any real internet use even though its limited to 50 Mbps.  

T-Mobile does not work with most set top boxes or streaming internet devices, it does not work for most gaming sites via pc or console most of the time.  It's fast for uploads and downloads on sites that are compatible with it.  I wish they would fix it to be a general purpose internet but I have no idea who to contact to get anything done.

I have spoken to the advanced tech support people and they say limitations of the network mean it won’t really work as general purpose home internet unless major changes are made to the T-Mobile network itself on their end, and that they have no plans to do it in the near future.