so very frequently when im using the internet at my home the internet renders itself disconnected but upon further experimentation ive noticed my download speed stays constant and downloading/receiving data is completely stable and works just fine but my upload speed completely disconnects. so i discovered this by being in a skype call and when these sudden "disconnects" would happen the other party couldnt hear what i was saying and i could hear them perfectly fine. but of course my video game dropped out because it needs to receive data from me in order to keep a stable connection. i cannot find a reason for this kind of behavior and i can't find anything in forums at all so here i am asking if anyone can help me. comcast seems to act like im lying when i tell them this and constantly hangs up on me (filing a complaint with the better business bureau as well over this)