Originally Posted by
rans6andrew
We had considered the possibility of multiple logins being prevented by the host site by logging out and closing down the laptop that works ........
Still no joy on other machines.
The normal login systems work by generating a cookie that is stored on your computer after confirming the ID and password. It doesn't keep track of who is logged in, it asks the browser if there is a cookie at some interval or at each operation. The typical "logged out" automatically system is because the cookie can also be assigned a lifespan and if the cookie is not refreshed from time to time it goes stale and cannot be used.
To go the other way leaves the requirement that the main software tracks who is logged in and where they are logged in from and from there the potential of preventing every user from either logging in or logging out if some part of that software screws up.
What I have seen around the edges is that many education sites seem to really hate their users. Mainly the result of anti-cheating measures that aren't particularly well thought out, rejecting users more readily than they should.
The vendor should be able to explain why there is a problem if you have used the copy/paste method mentioned earlier.