Checked mine and saw no red light. I don't recall ever seeing one in the past, either.
As for the upload speed, unless you do a lot of uploading of videos and/or large pictures, an upload speed like you are getting is most likely going to be fine. It get around the same upload speed as you, and when I upload a pic here and there, it's enough.
Your download speeds are great!
You're welcome. To be honest, I have absolutely no clue as to what could cause it, nor why it would still be doing it with a new modem.
I don't know if the modems themselves can differentiate between a misalignment and heavy rain, but the techs can, as can we, by reading the state codes and such. A misalignment would be a constant thing, whereas the heavy rain, of course, wouldn't.
Being that it's giving you very good download speeds now, I would just sort of shield my eyes when starting it so you don't see that red light. LMAO.
The 80Kbps upload speeds could be caused by anything, I suppose. It may just be an odd fluctuation. If it's constantly low, OTOH, that's a different story, and if it is constant, they may be able to look at it and do some type of tweak to get a better speed.