The past 4 days comcast net in my area has shut off upload from around midight til after 6 am.
Why at that time, why not during the day, switch it up sometimes let everyone feel what its like.
First thing to check, is there any maintenance going on in your area?
If there is, it would make absolute sense it would be happening late at night, when it would impact very few people and hardly any businesses.
Post the requested info from here;