25 mbps Comcast plan won't fix your uploading killing download speed problem

According to this post, they had the same problem on the 25 mbps plan. They had to upgrade to Blast to be able to upload and use the internet at the same time. Good thing I didn’t upgrade to 25 mbps. I might downgrade to 3 mbps though, it’ll save me ten bucks a month.

QoS might fix it. If you are smart enough to set it up.