Man am I glad that I found this thread. I did an app optimization under Galaxy Labs and hosed wireless and cellular data. Tried the typical stuff. Nothing. I didn't have the adguard app, assuming that's what everyone in this threat was talking about, but I did have 'dns.adguard.com' set up as a Private DNS. I removed it and voila, data was back.
@mustang7757, If I remember right, i got the 'dns.adguard.com' recommendation from you in another thread. Do you know anything I can do to allow it to work again? I just tried it and had to turn it back off.
Thanks in advance.
Jim