New LiftMaster 828LM MyQ Internet Gateway will not connect to New ATT BGW320-500 Fiber Router/Gateway
I had an old "copper" ATT router/cable modem that my MyQ device was connected via ethernet to. It worked for many years. ATT upgraded me to fiber and installed the BGW320-500, and the MyQ device was not recognized by the BGW320-500, as in, it never showed up as a device as checked by ATT Tech Support nor in my SmartHome app. The ethernet light on the port it's plugged into is green. LiftMaster Tech Support said I needed a newer version of the MyQ gateway (old one dated 2014), so I bought one and tried everything with no luck - same exact problem. (New MyQ gateway dated 2021). Neither LiftMaster Tech Support nor ATT Tech Support had any idea of what was going on or how to fix it. I upgraded to fiber only to loose capability I had with my ancient cable modem. I have noticed many postings on the internet in various places that other people have had this exact same problem, but there has been no solution posted. Has anyone solved this problem?