Centurylink offered to upgrade my internet speed to 10 gb from 1.5 for ten dollars per month more in January. Since then, I have spent somewhere near 25 hours on the phone with them pluggin in and unplugging my modem and running various tests to determine why the speed is acceptable in the morning but then decreases as the day progresses down to under 1 gb (sometimes even lower). I have frequent outages and I must reboot my modem to revive service during all times of day. They have sent three technicians to my home (one of whom seemed more... read full review »