Are we talking 75 Mbps for FTTN? I have FTTN and tool says upgrade not available. Does this mean I am out of luck (too far away, not available in my area, etc)?
I believe that distance, equipment in the area, and neighborhood capacity can all be factors for availability of the 75 Mbps service. It's not an option for me either and I'm pretty close to the VRAD and both of my lines are synced at 85 Mbps so clearly here what's obtainable is not the reason its not available.
I'd keep checking periodically and see if the situation changes, and I'll do more research in the mean time to see if we can find out a any further explanations. If we're unable to offer it, it is also unavailable from AT&T directly in every case I've seen so far.