Solved
Delete temp/cookies.
If anyone is getting a 401 HTTP error when trying to sign in, be sure to delete your cookies and tempory files. That worked for me.
Forum Discussion
I had to create a new 'Username' of 'Lovemylab1'. The "autologin" asked me to "complete registration" and wouldn't let me use my old 'Username'. It said it was already taken. I tried to get help via Chat with a Cox agent, who instead decided to add another 'User ID', not understanding that a 'User ID' and a 'Username' are two different things. Frustrated, but that's the way it goes sometimes. Couldn't reach a moderator without registering.
