[Joe Wilson]

We're getting the same issue here. Strange part is, our Axis camera has been working fine up until the other day. We were getting a feed to SmartDashboard just fine at the practice field on Saturday. Robot was shut down over night, then on Sunday at the practice field: no feed and that same "too many users" error you are seeing when we look at the config page the camera serves.

Wish I had a solution for you, but at least this means you aren't the only one. I've got some things to try this week and will keep you posted.