computer not recognizing TMobile internet for wifi connection

I have a 2015 Lenovo Y50-70 and it sees and works fine with Xfinity’s Internet.  Just received my TM Internet Gateway and it works great with my phones, tablets, TV and my Windows 11 Lenovo Flex-5 laptop, BUT, not with my Windows 10 Lenovo Y50-70. It doesn't even see the default TM 5.0 WiFI band nor the TM 2.4 band but sees both Xfinity Wifi bands. I changed the TM 2.4 band to WPA/WPA2, didn't work.  I hooked up the laptop to the TM Lan1 port with an ethernet cable, didn't work. I did a network Reset on the laptop, didn't work. Hidden Network button on both bands are turned off.  Not sure what else to try.  Any other ideas would be greatly appreciated, outside of buying a new laptop.🙄 I'm wanting to cancel Xfinity but I need to keep that laptop online as well. So I'll log back into Xfinity's internet for now. Thanks ahead of time!!