I read over the other threads and they do not seem to apply to this.
We have 6 computers using them at a school. When we open tinkercad we get the security certificate Error. None of them can edit the files. We can open them but not edit or load them. WE get a 404 file not found error. Please help. Children are in a 3d printing camp for only this week.
It works when we use our phone as a hot spot but not with the internet from the school