Welcome to the community @macnmod
When you open the SSID, expand the Advanced Settings and you’ll see the band selection choices (2GHz, 5GHz or Both)

Select 5GHz and Save
Welcome to the community @macnmod
When you open the SSID, expand the Advanced Settings and you’ll see the band selection choices (2GHz, 5GHz or Both)

Select 5GHz and Save