t-Mobile Home Network Problem connecting to 2.4G wifi

Thanks for the comments.  I may have taken the non-geek way out.  I plugged in my "old" systems Google router into the Gateway ethernet port and WOW, it just went to working.

Now have a Gateway wifi address and password and the Google wifi and password.  It was kind of scary how easy it was.

I do like the T-Mobile Gateway.  400+ down and 65+ up.  The Google router is slower but for the older devices it doesn't matter.

Thanks again.